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USA Underground Buildings
This list contains more than 700 buildings in the United States that are underground, either completely or to a significant extent. It also includes a few that are under construction or are being planned. The list is incomplete for several reasons. Private homes are not included, except for one located in a former missile silo and one that is located in a sculpture garden that is open to the public. Wineries with cellar space open to the public are included only if they are outside of California; in addition, there are more than 100 California wineries, some of which have underground installations large enough to contain offices and production facilities as well as aging cellars (for a partial list, see Building Caves: Wine Not?). Most of the buildings listed below were identified through descriptions published in newspapers, magazines, and books. If you have additions or corrections for this list, please send us information. Thank you!
This list contains more than 700 buildings in the United States that are underground, either completely or to a significant extent. It also includes a few that are under construction or are being planned. The list is incomplete for several reasons. Private homes are not included, except for one located in a former missile silo and one that is located in a sculpture garden that is open to the public. Wineries with cellar space open to the public are included only if they are outside of California; in addition, there are more than 100 California wineries, some of which have underground installations large enough to contain offices and production facilities as well as aging cellars (for a partial list, see Building Caves: Wine Not?). Most of the buildings listed below were identified through descriptions published in newspapers, magazines, and books. If you have additions or corrections for this list, please send us information. Thank you!
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List updated September 11, 2024.
Unless otherwise attributed, all SubsurfaceBuildings.com content is © Loretta Hall, 2000-2024.

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Alabama
Vulcan District Boy Scouts headquarters, Birmingham
Morgan County 911 Communications Center, Decatur
JMBamboo Nursery, Dora

Alaska
Kincaid Park Chalet, Anchorage
Eielson Visitor Center, Denali National Park
Social Security Building

Arizona
Historic jail, Clifton
Roden Crater, Flagstaff
Independence High School, Glendale
Titan Missile Museum, Green Valley
Observation Room, McMath-Pierce Solar Telescope, Kitt Peak
Arcosanti Greenhouse, North of Phoenix
Maricopa County Emergency Operations Center (EOC), Papago Buttes
Hualapai Tribal Earthship, Peach Springs
Ann Ott Elementary School (now Rio Salado College Learning Center), Phoenix
Arizona Science Center, Phoenix
CamelSquare Executive Park Building K, Phoenix
Hermosa Inn Wine Cellar, Phoenix
Phoenix Convention Center addition, Phoenix
Phoenix Earthship Nightly Rental, Phoenix
Silvestre S. Herrera Elementary School, Phoenix
Mayo Clinic Concourse, Scottsdale
Taliesin West Cabaret Theater, Scottsdale
Corona del Sol High School, Tempe
Hayden Library, ASU, Tempe
Nelson Fine Arts Center, ASU, Tempe
Presidio Museum, Tubac
Bear Down Gym shooting range, UA, Tucson
Integrated Instructional Facility, UA, Tucson
Ventana Vista Elementary School, Tucson

Arkansas
Wonderland Cave, Bella Vista
Crystal Bridges Art Museum, Bentonville
Hendrix College Library (demolished), Conway
Beckham Creek Cave Haven (B&B), Jasper
State EOC, Little Rock

California
Sixteen to One Mine, Alleghany
Greathouse Visitor Center at Black Diamond Mines, Antioch
Bechtel Engineering Center, UC, Berkeley
Law School library and academic building, UC, Berkeley
Main Library addition, UC, Berkeley
Molecular Foundry, Lawrence Berkeley National Labs, Berkeley
Chu Hall, UC, Berkeley
Northwest Animal Facility, UC, Berkeley
Student Athlete High Performance Center, UC, Berkeley
University Art Museum, UC, Berkeley
Post Ranch Inn, Big Sur
Anza-Borrego Desert State Park Visitor Center, Borrego Springs
Piute Mountain School, Caliente
Beckman Hall, Harvey Mudd College, Claremont
Kravis Center, Claremont McKenna College, Claremont
Teaching and Learning Center, Harvey Mudd College, Claremont
Glen Ivy Hot Springs Spa Grotto, Corona
Baldwin Hills Scenic Overlook visitor center, Culver City
Apple Headquarters auditorium, Cupertino
The Observatory event space, Cupertino
Forestiere Underground Gardens, Fresno
Acido Dorado vacation rental house, Joshua Tree
Neurosciences Institute, La Jolla
Southwest Fisheries Science Center, La Jolla
Miller Children's Hospital expansion, Long Beach
Foothills College Physical Sciences and Engineering Center, Los Altos Hills
7th and Figueroa Shopping Mall, Los Angeles
Arco Plaza Underground Mall, Los Angeles
Cedars-Sinai Cancer Center, Los Angeles
Clark Memorial Library addition, Los Angeles
Getty Center, Los Angeles
Griffith Observatory Expansion, Los Angeles
Hughes Aircraft Headquarters, Los Angeles
James M. Wood Community Center, Los Angeles
Japanese American Cultural and Community Center's James Irvine Garden, Los Angeles
Los Angeles Central Library addition, Los Angeles
Los Angeles City EOC, Los Angeles
Los Angeles Mall, Los Angeles
Los Angeles Museum of the Holocaust, Los Angeles
MOCA at California Plaza, Los Angeles
Moffett Elementary School, Los Angeles
Olvera Street/Chinatown Museum, Los Angeles
Science Center School, Los Angeles
United Airlines customs and immigration center, Los Angeles International Airport
La Marina Preschool, Manhattan Beach
Private Art Gallery, Napa
Castello di Amorosa, Napa Valley
Spa Terra at Meritage Resort, Napa
Muth Interpretive Center, Newport Beach
Orange County Museum of Art, Newport Beach
Oakland Museum of California, Oakland
Primatempra House, Pacifica
Rose Bowl Locker Room Facility, Pasadena
Diamond Ranch School, Pomona
Mojave Desert Visitor Center, Poppy Reserve
Chart House restaurant, Rancho Mirage
Lewis Hall, University of Redlands, Redlands
California State Office Building, Sacramento
Sutter Health Treatment Center, Sacramento
Geisel Building addition, UCSD, San Diego
Horton Plaza Lyceum Theatre, San Diego
Love Library expansion, SDSU, San Diego
Natural History Museum expansion, San Diego
Brooks Hall, San Francisco
California Palace of the Legion of Honor Expansion, San Francisco
Chinese Historical Society Museum, San Francisco
Lick-Wilmerding High School addition, San Francisco
Lo Sciavo Center for Science and Innovation, USF, San Francisco
Moscone Convention Center, San Francisco
Moscone Convention Center north addition, San Francisco
Pacific Heritage Museum, San Francisco
San Francisco General Hospital expansion, San Francisco
Student Health Services Building, SFSU, San Francisco
Marin County Jail, San Rafael
Fremont Elementary School, Santa Ana
Hoover School, Santa Ana
Wilson School, Santa Ana
Bacara Resort & Spa, Santa Barbara
University of California Music Center, Santa Cruz
Santa Monica Police Headquarters, Santa Monica
Nike Site SF-88L (museum), Sausalito
Artists' Studios, Oliver Ranch, Sonoma County
Stream Profile Chamber, South Lake Tahoe
Cancer Treatment Center, Stanford U, Stanford
Clark Center auditorium, Stanford U, Stanford
Lucas Center expansion, Stanford U, Stanford
Thousand Oaks Civic Arts Plaza, Thousand Oaks

Colorado
Sport-Obermeyer Warehouse & Offices, Aspen
Harris Concert Hall, Aspen
Isis Theater expansion, Aspen
Wildwood School, Aspen
Ritz-Carlton Spa, Beaver Creek
Vilar Center for the Arts, Beaver Creek
Quaker Meeting House, Boulder
NORAD Combat Operations Center, Cheyenne Mountain
Fire Station, Creede
Community Center & Mining Museum, Creede
Mollie Kathleen Gold Mine tour, Cripple Creek
Colorado Corrections Medical Facility, Denver
FEMA Regional Headquarters, Denver
Republic Plaza shops, Denver
Trinity United Methodist Church addition, Denver
Data-Lock record storage, Fort Collins
Yampah Spa and Vapor Caves, Glenwood Springs
State EOC, Golden
Indian Springs Resort Cave Baths, Idaho Springs
FEMA Operations Center, Lakewood
Water Treatment & Decontamination International, Leadville
Red Rocks Amphitheater Visitor Center, Morrison
Old Hundred Gold Mine Tour, Silverton
Rocky Mountain Institute Headquarters, Snowmass
Vail Library, Vail

Connecticut
Old New-Gate Prison (museum), East Granby
BMW Competition & Sports Cars Ltd., Greenwich
Greenwich Academy Upper School, Greenwich
Mark Twain House Museum, Hartford
Old State House museum, Hartford
Pequot Museum and Research Center, Mashantucket
Philip Johnson Art Gallery, New Canaan
Beinecke Library, Yale U, New Haven
Child Development Unit, Yale Child Study Center, New Haven
Bass (formerly Cross Campus) Library, Yale U, New Haven
Ingalls Hockey Rink expansion, Yale U, New Haven
Morse and Ezra Stiles College expansion, Yale U, New Haven
New Haven Sportsman's Club pistol range, New Haven
Horse Ridge Cellars Wine Storage, Somers

Delaware
Rodney Fitness Center, UD, Newark

District of Columbia
Amazonia Exhibit, National Zoological Park
Caverns Jazz Lounge
DC Court of Appeals addition
East Building of National Gallery of Art
Federal Triangle Hemicycle
Folger Shakespeare Library addition
Fort Davis Center
Kennedy Center addition
La Promenade at L'Enfant Plaza
Lexington Apartments retail space
Marriott Hall, St. Alban's School
National Cathedral shop & offices
National Cathedral School Athletic Center
National Law Enforcement Museum
National Portrait Gallery & American Art Museum auditorium
Old Holy Trinity Church administration addition
Phillips Collection Center for Studies of Modern Art (addition)
Sidwell Friends Middle School Athletic Center
Smithsonian South Quadrangle (Sackler Gallery & African Art Museum)
Supreme Court addition
TJ Maxx, Chevy Chase Metro Plaza
Turkish Chancery
US Capitol Visitor Center
Washington Convention Center
White House expansion
Yates Field House, Georgetown University

Florida
Auditorium, U of Florida, Gainesville
Dickinson Hall, U of Florida, Gainesville
Science Building, Florida Southern College, Lakeland
Westinghouse Headquarters, Orlando
Palm Beach Police Department shooting range, Palm Beach
Peanut Island Shelter Museum, Peanut Island

Georgia
Flint River Center, Albany
Alpha Web Hosting Data Center, Atlanta
Underground Atlanta, Atlanta
Sweetwater Creek Visitor Center, Lithia Springs
Shenandoah Community Center, Shenandoah

Hawaii
Nanea Clubhouse, Kailua-Kona, Big Island
Iron Mountain Inc. data storage, Oahu
National Security Agency intelligence receiving hub, Oahu

Idaho
Amity Elementary School, Boise
Idaho Capitol addition, Boise

Illinois
Cave Room, Jackson House B&B, Alton
Fermilab, Batavia
Assembly Hall addition, University of Illinois, Champaign
Menard Prison, Chester
Adler Planetarium addition, Chicago
Field Museum addition, Chicago
Ford City Shopping Center, Chicago
Harris Theater for Music and Dance, Chicago
Interdivision Research Building, U of Chicago, Chicago
Mansueto Library, U of Chicago, Chicago
Museum of Science and Industry additions, Chicago
Pedway shops, Chicago
Shedd Aquarium addition, Chicago
Lake Forest Library, Lake Forest
Maximum-Security Federal Prison, Marion
Veterinary Clinic, Michigan City
Underground Warehouses Inc., Quincy
MacLean-Fogg Factory, Richmond
Spring Valley Visitor Center, Schaumberg
University of Illinois Library, Urbana
National Coal Museum, West Frankfort

Indiana
Anderson University Library expansion, Anderson
Simon Hall, Indiana University, Bloomington
Oaklyn Library, Evansville
Willard Library addition, Evansville
Christ Church Cathedral expansion, Indianapolis
Controlled Pharming Ventures, Marengo
North Harrison Elementary School, Ramsey
Fitzpatrick Hall of Engineering, Notre Dame, South Bend
Hicks Undergraduate Library, Purdue U, West Lafayette
PRIME Lab, Purdue U, West Lafayette

Iowa
Midwest Data Storage, Cedar Falls
University Union, University of Northern Iowa, Cedar Falls
Des Moines Art Center vault, Des Moines
InfoBunker, Des Moines
GuideOne Insurance Office addition, West Des Moines
Carver-Hawkeye Sports Arena, University of Iowa, Iowa City
School of Art and Art History Building, University of Iowa, Iowa City
Ballou Library Addition, Buena Vista University, Storm Lake
Siebens Forum, Buena Vista University, Storm Lake

Kansas
Underground City tour, Ellinwood
Jackson Heights High School, Holton
Salt Museum, Hutchinson
Underground Vaults & Storage, Hutchinson
Anderson Family Football Complex, University of Kansas, Lawrence
Oread Inn, Lawrence
Tivol Jewels offices, Hawthorne Plaza, Leawood
Cavern Technologies, Lenexa
Lenexa Conference Center addition, Lenexa
Meritex Lenexa Executive Park, Lenexa
20th Century Castles, Topeka
State Capitol expansion, Topeka

Kentucky
Lexington-Fayette Detention Center, Lexington
e-Cavern Data Center, Louisville
Louisville Underground, Louisville
StrataSpace Data Center, Louisville
Global Data Corporation data center, Stone Mountain
Kentucky Underground Storage, Wilmore

Louisiana
State Capitol Senate office expansion, Baton Rouge
Natural History Research facility, Tulane U, Belle Chasse
Calcasieu Parish Government Building addition, Lake Charles

Maine
State House addition, Augusta
Hawthorne-Longfellow Library Expansion, Bowdoin College, Brunswick
Walker Art Building addition, Bowdoin College, Brunswick
Camden Public Library addition, Camden

Maryland
Greenfield Library annex, St. John's College, Annapolis
Baltimore Convention Center expansion, Baltimore
Baltimore-Washington International Airport fire & rescue facility, Baltimore
Peabody Institute, Johns Hopkins U, Baltimore
Worldbridge Trade and Investment Center, Baltimore
Historic London Town and Gardens visitor center, Edgewater
NIST Advanced Measurement Laboratory, Gaithersburg
Robinson Nature Center, Howard County
Federal Realty Investment Trust headquarters, Rockville
Regal Cinemas, Rockville
NOAA Satellite Operations Facility, Suitland

Massachusetts
Du Bois Library, UMass, Amherst
Fisher/Watkins Library, Cushing Academy, Ashburnham
Belmont Hill School Athletic Center, Belmont
Judge Baker Children's Center addition, Boston
Museum of Fine Arts addition, Boston
Northeast Proton Therapy Center, Boston
Trinity Church expansion, Boston
Underground Art Gallery, Brewster
Underground Mall, Brewster
Bauer Laboratory Building, Harvard U, Cambridge
Cabot Science Center, Harvard U, Cambridge
Countway Library, Harvard U, Cambridge
Fogg Art Museum addition, Harvard U, Cambridge
Integrated Science & Engineering Library, Harvard U, Cambridge
New College Theater, Harvard University, Cambridge
Northwest Science Building, Harvard University, Cambridge
Pusey Library, Harvard University, Cambridge
Chesterfield Custom Inc, Chesterfield
Higgins Hall, Boston College, Chestnut Hill
Higgins Hall addition, Boston College, Chestnut Hill
State EOC, Framingham
College Library Repository, Hadley
FEMA Regional Center, Maynard
Lyman Conservatory expansion, Smith College, Northampton
Radiation Therapy Department, Dickinson Hospital, Northampton
University Club and food court, Smith College, Northampton
Bank of Boston Records Storage, Pepperell
Bear Swamp Visitor Center, Rowe
New North Community School, Springfield
Sterling & Francine Clark Art Institute expansion, Williamstown
Antiquarian Hall addition, Worcester

Michigan
Towsley Center Organ Studio, U of Michigan, Ann Arbor
University of Michigan Law Library addition, Ann Arbor
State Capitol Visitor Center, Lansing
Federal Building, Saginaw (1976-1999)
US Port of Entry, Sault Ste Marie
Kresge Foundation headquarters building, Troy
Waterford Police Department shooting range, Waterford Township
SubTerra agriculture, White Pine

Minnesota
TH-53 Rest Area, Anchor Lake
Underwater Adventures aquarium, Bloomington
I-90 Rest Area (demolished), Blue Earth
St. John's University Student Housing, Collegeville
Solon Campus Center, U of MN, Duluth
Minnesota Vikings Headquarters, Eden Prairie
Oliver H. Kelley Farm Visitors Center, Elk River
I-90 Rest Area (demolished), Enfield
I-90 Rest Area, Hayward
Earth Inn, Jackson
Anderson Library, U of MN, Minneapolis
Bakken Library and Museum addition, Minneapolis
Civil & Mineral Engineering Building, U of MN, Minneapolis
Emergency Communications Center, Minneapolis
Federal Reserve Building (former), Minneapolis
Ft. Snelling Visitor Center, Minneapolis
International Dispatch Center, Minneapolis
Minnesota Library Access Center, Minneapolis
Southeast Library, Minneapolis
Walker Community Library, Minneapolis
Williamson Hall, U of MN, Minneapolis
Holaday Circuits headquarters and factory, Minnetonka
Morgan Creek Vineyards, New Ulm
Central Elementary School, Norwood Young America
Maximum Security Prison, Oak Park Heights
Hunt Technologies headquarters, Pequot Lakes
Underground walkways and shops, Rochester
Wabasha Street Caves meeting/party facility, St. Paul
Terratech Center offices, St. Paul
Criteria Inc Offices, St. Paul
Soudan Underground Physics Lab, Soudan

Mississippi
State Capitol Expansion, Jackson
ZCSS.com Data Center, Three Rivers

Missouri
Morningside Church and Community, Blue Eye
Scuba Diving in Bonne Terre Mine, Bonne Terre
Ozark Mountain Underground Storage, Branson
Ozark Underground Laboratory, Branson
The Mountain Data Center, Branson
Americold Logistics, Carthage
Underground Racquets, Carthage
Wilson School Gym, Clayton
Crystal City Underground Sports Complex, Crystal City
Stone Hill Winery Cellars, Hermann
Space Center Executive Park, Independence
Carefree Industrial Park, Independence
Commercial Distribution Center Inc., Independence
Missouri National Guard Headquarters, Jefferson City
State EOC, Jefferson City
Underground Paintball, Joplin
Brunson Instrument Company, Kansas City
Hunt Midwest SubTropolis, Kansas City
Interstate Underground Warehouse, Kansas City
Jaegers Subsurface Paintball, Kansas City
James Printing, Kansas City
Metropolitan Community College, Penn Valley, Kansas City
Metropolitan Community College, Maple Woods, Kansas City
National World War I Museum, Kansas City
Nelson-Atkins Museum of Art addition, Kansas City
Whiteman AFB Missile Museum, Knob Noster
National Archives & Records Storage Center, Lee's Summit
Space Center Summit, Lee's Summit
Rush Creek Properties, Liberty
Daisy Airgun Factory (former), Neosho
Ozark Terminal industrial park, Neosho
Parkville Commercial Underground, Parkville
Park University, Parkville
Reeds Spring Middle School, Reeds Spring
Caveman Bar-BQ & Steak House, Richland
Bussen Underground, St. Louis
Gateway Arch Visitor Center, St. Louis
Missouri History Museum expansion, St. Louis
St. Louis Art Museum addition, St. Louis
Office of Emergency Management. St. Louis County
85Under Data Center, Springfield
Medical Center for Federal Prisoners, Springfield
PaperWise Data Center, Springfield
PHNS Data Center, Springfield
Springfield Underground, Springfield
Meramec Caverns, Stanton
Innerspace Storage Corporation, Sugar Creek

Montana
Underground City tour, Havre
Sweetgrass Rest Area, Sweetgrass

Nebraska
Heritage Center at the Homestead National Monument, Beatrice
Museum of the Fur Trade, Chadron
Harriman Dispatching Center, Omaha
Mutual of Omaha Headquarters addition, Omaha
Benedictine Mission House, Schuyler

Nevada
Richards Car Museum & Golf Course Offices, Carson City
Dolphin Court Grand Spa at Green Valley Ranch Station, Henderson
Nuclear Waste Repository (deactivated), Yucca Mountain

New Hampshire
Intervale Scenic Vista Visitors Center, Conway

New Jersey
AT&T Global Operations Center, Bedminster
Office Building, Cherry Hill
Novartis Pharmaceuticals Research Center, East Hanover
Vital Records Inc., Flagtown
Becton, Dickinson and Company Campus Center, Franklin Lakes
Poor Richard's Winery, Frenchtown
East Pyne addition, Princeton U, Princeton
Fine Hall, Princeton U, Princeton
Firestone Library, Princeton U, Princeton
Firestone Library addition, Princeton U, Princeton
Jadwin Gym, Princeton U, Princeton
Marquand Art Library addition to McCormick Hall, Princeton U, Princeton
Math-Physics Library, Princeton U, Princeton
McDonnell Hall, Princeton U, Princeton
Robertson Hall addition, Princeton U, Princeton
The Annex Restaurant, Princeton
Whitman Theater & Servery, Princeton U, Princeton
Vital Records Inc., Roxbury

New Mexico
Indian Pueblo Cultural Center, Albuquerque
Centennial Science & Engineering Library, UNM, Albuquerque
Parish Library, UNM, Albuquerque
Regener Hall, UNM, Albuquerque
First Plaza Galeria, Albuquerque
University Arena (The Pit), Albuquerque
Zimmerman Library addition, UNM, Albuquerque
Vietnam Veteran's National Memorial Visitor Center, Angel Fire
Abo Elementary School (closed), Artesia
Artesia Park Junior High School, Artesia
Waste Isolation Pilot Project (WIPP), Carlsbad
Dobson House B&B, El Prado (near Taos)
Kokopelli's Cave B&B, Farmington
New Mexico Mining Museum, Grants
Woolworth Library, Jal
Neutron Science Center, Los Alamos
Goddard Senior High School, Roswell
Corner Cottage Earthship Nightly Rental, near Taos
HelioHouse Earthship Nightly Rental, near Taos
Studio Earthship Nightly Rental, near Taos
Spaceport America, Upham

New York
ATLAS-F Missile Silo Home, Adirondack State Park
Empire State Plaza, Albany
Physics Laboratory, University at Albany, Albany
State Emergency Management Office, Albany
Heimbold Visual Arts Center, Sarah Lawrence College, Bronxville
Bushwick Inlet Park community center, Brooklyn
Brooklyn Botanic Garden visitor center, Brooklyn
Brooklyn Children's Museum, Brooklyn
New York Transit Museum, Brooklyn
Tilles Center for the Performing Arts, Brookville
Queens Botanical Garden Reception and Administration Building, Flushing
Facilities Management Building, SUNY, Fredonia
Greenporter Spa, Greenport
Iron Mountain Records Management, Iron Mountain
Fieldstone Suite overnight rental home, Ithaca
Johnson Museum of Art addition, Cornell U, Ithaca
Kroch Library, Cornell U, Ithaca
Museum of the Earth, Ithaca
Myron Taylor Hall addition, Cornell U, Ithaca
Sage Hall addition, Cornell U, Ithaca
Undergraduate Library, Cornell U, Ithaca
University Campus Store, Cornell U, Ithaca
Wine-Storage Cave, Kingston
Apple computer store, Manhattan
Barneys Loading Dock, Manhattan
Brasserie 8-1/2 Restaurant, Manhattan
Chemical Bank, Manhattan
Donnell Branch Library, Manhattan
Knitting Factory music venue, Manhattan
Federal Reserve Bank Vault, Manhattan
International Center of Photography School, Manhattan
Juilliard School's Tully Hall, Manhattan
Mulberry Street Library, Manhattan
New Horizons Computer Learning Center, Manhattan
New World Theaters, Manhattan
New York Law School expansion, Manhattan
New York Main Library expansion, Manhattan
Rockefeller Center Mall, Manhattan
Spence School Gymnasium, Mahnattan
Solomon Guggenheim Expansion, Manhattan
Steinberg Center for Theatre, Manhattan
Suba Restaurant, Manhattan
Whole Foods Market, Manhattan
World Trade Center 9/11 Museum, Manhattan
Zankel Hall at Carnegie Hall, Manhattan
Mary Flagler Cary Arboretum, Millbrook
College of New Rochelle Wellness Center, New Rochelle
Avery Hall addition, Columbia U, New York City
Bridgemarket, New York City
Condo Spa & Theater, New York City
Congo Gorilla Forest, Bronx Zoo, New York City
Dodge Physical Fitness Center, Columbia U, New York City
Lycee Francais, New York City
Maxim Soho Spa, New York City
Morgan Library addition, New York City
Museum of American Folk Art, New York City
Museum of the City of New York addition, New York City
NYU classrooms beneath Gould Plaza, New York City
NYU Law Library addition, New York City
Planet Hollywood, New York City
Proskauer Rose Law Library, New York City
Suba Restaurant, New York City
George Eastman House archives building, Rochester
Skidmore Permanent Art Collection (former), Saratoga Springs
Stony Brook University Medical Center Expansion, Stony Brook
Performing Arts Center, Rensselaer Polytechnic, Troy
Munson-Williams-Proctor Institute expansion, Utica
Brotherhood Winery Cellars, Washingtonville

North Carolina
Asheville Mall expansion, Asheville
Blue Ridge Parkway Destination Center, Asheville
Grove Park Inn Spa, Asheville
Media Center, Mars Hill College, Mars Hill
Raleigh Convention Center, Raleigh
Reed Gold Mine Museum, Stanfield
The Swag Racquetball Court, Waynesville

North Dakota
Emergency Disaster Service Building, Bismarck

Ohio
Seiberling Naturealm Visitor Center, Akron
Shoker Science Center, Bluffton College
Aronoff Center, U of Cincinnati, Cincinnati
Cleveland Convention Center expansion, Cleveland
Health Sciences Bldg, Cleveland State U, Cleveland
Rock and Roll Hall of Fame and Museum, Cleveland
Tower City Center Shops, Cleveland
Cleveland Institute of Music Library underground addition, Cleveland
State EOC, Columbus
Wexner Center for the Arts, Ohio State U, Columbus
Sinclair Community College Library, Dayton
Pyramid Hill Museum house, Hamilton
Bellflower Elementary School, Mentor
The Mound Laboratories, Miamisburg
The Honeycombs at Honey Run Inn & Spa, Millersburg
Dana Center, Medical College of Ohio, Toledo
I-77 Rest Area, Southeast Ohio
Armstrong Air and Space Museum, Wapakoneta

Oklahoma
Junior-Senior High School, Blanchard
Davis Elementary School, Davis
Middle School, Davis
Elementary & High School, Duke
Elementary School, Hydro
Delaware County Jail, Jay
H-Unit, Oklahoma State Penitentiary, McAlester
Jones Museum of Art, U of OK, Norman
Longfellow Middle School, Norman
Conncourse tunnels and shops, Oklahoma City
Emergency Operations Center, Oklahoma City
John Glenn Elementary School, Oklahoma City
Health Professions Center, Oklahoma City Community College, Oklahoma City
Original Building, Oklahoma City Community College, Oklahoma City
Patience S. Latting Northwest Library
Elementary School, Prague
Sayre Elementary School addition, Sayre
Elementary School, Seiling
Bethel High School, Shawnee
Sabre Inc., Tulsa
High School, Tupelo
High School, Washington
Weleetka Elementary School, Weleetka
Elementary & Junior High School, Wellston

Oregon
Sokol Blosser Winery, Dundee
Lokey Science Building, U of OR, Eugene
Underground City tours, Pendleton
Melting Pot restaurant, Portland
Memorial Colliseum exhibit hall, Portland
Portland Art Museum addition, Portland
Underground City tour, Portland
Visitor Center Theater, Portland
Multnomah County Maintenance Building, Portland

Pennsylvania
Iron Mountain/National Underground Storage, Boyers
Grundy Memorial Library, Bristol
Dalton Hall addition, Bryn Mawr
Rhys Carpenter Library, Bryn Mawr
Thomas Hall Library addition, Bryn Mawr
US Storage, Cabot
Bradys Bend Corp. Storage, East Brady
Raven Rock Mountain, Fountain Dale
Rohrer's Quarry ready-mix concrete plant, Lititz
Montgomery County EOC, Lower Providence
Calder Gardens, Philadelphia
Franklin Court Museum, Philadelphia
Houston Hall addition, U of PA, Philadelphia
Museum expansion, U of PA, Philadelphia
Penn Center Underground Shops, Philadelphia
Philadelphia Museum of Art addition, Philadelphia
Roberts Proton Therapy Center, U of PA, Philadelphia
Septa's Suburban Station Concourse Mall, Philadelphia
Wilma Theater, Philadelphia
Athletic Center, Chatham College, Pittsburgh
Phipps Conservatory and Botanical Gardens' Expansion, Pittsburgh
Posner Family Collection Gallery, Carnegie Mellon U, Pittsburgh
Flight 93 Memorial Visitor Center, Somerset County
Valley Forge Visitor Center, Valley Forge
Gateway Commerce Center, Wampum
L-3 Brashear Optical Instrument factory, Wampum
Mines & Meadows ATV riding resort, Wampum
Creekside Mushrooms, Worthington

Rhode Island
Redwood Library addition, Newport
Multidisciplinary Teaching Lab, Brown U, Providence

South Carolina
Charles Towne Landing Museum (closed), Charles Towne Landing
Strom Thurmond Institute, Clemson
West Quad Learning Center, U of SC, Columbia

South Dakota
Minuteman Missile National Historic Site, Cactus Flats
Deep Underground Science and Engineering Laboratory (DUSEL), Lead
Cultural Heritage Center, Pierre

Tennessee
Raccoon Mountain pumped storage power plant, Chattanooga
Cumberland Commerce Center, Cumberland
FedEx, Memphis
Governor's mansion meeting facility, Nashville
Legislative Plaza, Nashville
Military History Museum, Nashville
Joint Institute Dormitory, ORNL, Oak Ridge

Texas
Dive Valhalla, near Abilene
I-40 Rest Area, Amarillo
High School, Aspermont
State EOC, Austin
Texas Capitol expansion, Austin
Dakota's Restaurant, Dallas
Nasher Sculpture Center, Dallas
The Underground pedestrian tunnels and shops, Dallas
Undermain Theatre, Dallas
Wyly Theatre, Dallas
Federal Civil Defense Administration Shelter, Denton
Kimbell Art Museum addition, Fort Worth
Main Library (former), Fort Worth
Washington Heights Elementary School, Fort Worth
Inner Space Cavern, Georgetown
City Hall, Hale Center
Cullen Performance Hall Annex, UH, Houston
Houston Tunnel System (shops), Houston
Law Library, UH, Houston
James Turrell skyspace, Rice University, Houston
University Center Satellite, UH, Houston
University Center Underground, UH, Houston
James Hodgkins Intermediate School, Lake Worth
Lake Worth High School, Lake Worth
Elementary School addition, Laredo
United High School, Laredo
Lawn Atlas Missile Base party venue, Lawn
Law School Library addition, Texas Tech, Lubbock
St. John Neumann Catholic Church, Lubbock
Experian Data Center, McKinney
Westlin Corporation secured data center and disaster recovery facility, Montgomery
Missile Silo Home & Private Tours, Oplin
AT&T switching center, Plano
Ethicon factory, San Angelo
Lucile Halsell Conservatory, San Antonio

Utah
Granite Mountain Genealogy Center, Granite Mountain
Hollow Mountain Gas & Grocery, Hanksville
Homestead Crater Scuba Diving, Heberville
Moqui Cave museum, near Kanab
Amangiri Canyonlands Resort and Spa, Kane County
Center 7 Data Bunker, Lindon
Hole 'n the Rock Trading Post, Moab
Spiro Tunnel Ski Lift & Museum, Park City
Eyring Science Center addition, BYU, Provo
IT Building, BYU, Provo
Lee Library addition, BYU, Provo
Engineering & Mines Building (former), U of UT, Salt Lake City
LDS Conference Center, Salt Lake City
Marriott Library addition, U of UT, Salt Lake City
Student Services Building, U of UT, Salt Lake City
Utah Museum of Natural History, U of UT, Salt Lake City
Perpetual Storage Inc., Sandy

Vermont
IBM Plant expansion, Burlington
Hartness House Inn Museum, Springfield

Virginia
Pentagon Expansion, Arlington
Women in Military Service to America Memorial, Arlington
Janelia Farm Research Campus, Ashburn
Mount Weather, Berryville
Burchard Hall, Virginia Tech, Blacksburg
Terra Centre Elementary School, Burke
Winthrop Rockefeller Archaeology Museum (closed), Carter's Grove
Dulles Airport Passenger Screening Facility, Chantilly
Special Collections Library, U of VA, Charlottesville
Thomas Jefferson Visitor Center, Charlottesville
Crystal City Shopping, Crystal City
Library of Congress Audio-Visual Conservation facility, Culpeper
National Museum of the United States Army, Fort Belvoir
Education Center and Museum, Mount Vernon
National Museum for the Marine Corps, Quantico
National Art Education Headquarters, Reston
Terraset Elementary School, Reston
State Capitol Building addition, Richmond
DISA headquarters, Skyline City
DeWitt Wallace Gallery, Williamsburg

Washington
Public Library (closed), Arlington
Peace Arch Port of Entry, Blaine
FEMA Regional Center, Bothell
Coldwater Ridge Visitors Center/Johnston Ridge Volcano Observatory, Castle Rock
Maryhill Museum of Art expansion, Goldendale
Analytical Chemistry Building, PNL, Hanford
State Capitol expansion, Olympia
Johnson Ridge Observatory, Pinchot National Forest
Central Library closed stacks addition, Seattle
Fisher Pavilion, Seattle
Foster Business Library, UW, Seattle
Henry Art Gallery addition, Seattle
IMA addition (1982), UW, Seattle
Law Library, UW, Seattle
Medical Center Surgery Pavilion, UW, Seattle
Mueller Hall, University of Washington, Seattle
Olympic Sculpture Park Pavilion, Seattle
Ranier Square shops, Seattle
Subterranean City tour, Seattle
Central Pre-Mix Concrete Co. headquarters, Spokane
North Central High School, Spokane
Blue Ridge Elementary School, Walla Walla

West Virginia
Sparks Sport Center shooting range, Martinsburg
Shepherdstown Library addition, Shepherdstown
Greenbrier Congressional Shelter, White Sulphur Springs
Greenbrier Resort Casino, White Sulphur Springs

Wisconsin
Sigurd Olson Environmental Institute, Ashland
St. Benedict's Abbey, Benet Lake
Bleu Mont Dairy cheese factory, Blue Mound
Indian Community School, Franklin
Mary Ann Cofrin Hall, U of WI, Green Bay
Instructional Services Building, U of WI, Green Bay
Student Services Building, U of WI, Green Bay
The American Club under-courtyard conference rooms, Kohler
Computer Services Dept, Western WI Technical College, La Crosse
Froedtert Cancer Center, Milwaukee
Milwaukee Rowing Club, Milwaukee
St. John Mine museum, Potosi
Fortaleza Hall, SC Johnson campus, Racine
Epic Systems Auditorium, Verona
Epic Systems Data Center, Verona
Dairy Queen, Washburn

Wyoming
A-Square Co. rifle test range, Glenrock
National Museum of Wildlife Art, Jackson
Science Library, U of WY, Laramie
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Alabama
Vulcan District Boy Scouts headquarters, Birmingham
Morgan County 911 Communications Center, Decatur
JMBamboo Nursery, Dora

Alaska
Kincaid Park Chalet, Anchorage
Eielson Visitor Center, Denali National Park
Social Security Building

Arizona
Historic jail, Clifton
Roden Crater, Flagstaff
Independence High School, Glendale
Titan Missile Museum, Green Valley
Observation Room, McMath-Pierce Solar Telescope, Kitt Peak
Arcosanti Greenhouse, North of Phoenix
Maricopa County Emergency Operations Center (EOC), Papago Buttes
Hualapai Tribal Earthship, Peach Springs
Ann Ott Elementary School (now Rio Salado College Learning Center), Phoenix
Arizona Science Center, Phoenix
CamelSquare Executive Park Building K, Phoenix
Hermosa Inn Wine Cellar, Phoenix
Phoenix Convention Center addition, Phoenix
Phoenix Earthship Nightly Rental, Phoenix
Silvestre S. Herrera Elementary School, Phoenix
Mayo Clinic Concourse, Scottsdale
Taliesin West Cabaret Theater, Scottsdale
Corona del Sol High School, Tempe
Hayden Library, ASU, Tempe
Nelson Fine Arts Center, ASU, Tempe
Presidio Museum, Tubac
Bear Down Gym shooting range, UA, Tucson
Integrated Instructional Facility, UA, Tucson
Ventana Vista Elementary School, Tucson

Arkansas
Wonderland Cave, Bella Vista
Crystal Bridges Art Museum, Bentonville
Hendrix College Library (demolished), Conway
Beckham Creek Cave Haven (B&B), Jasper
State EOC, Little Rock

California
Sixteen to One Mine, Alleghany
Greathouse Visitor Center at Black Diamond Mines, Antioch
Bechtel Engineering Center, UC, Berkeley
Law School library and academic building, UC, Berkeley
Main Library addition, UC, Berkeley
Molecular Foundry, Lawrence Berkeley National Labs, Berkeley
Chu Hall, UC, Berkeley
Northwest Animal Facility, UC, Berkeley
Student Athlete High Performance Center, UC, Berkeley
University Art Museum, UC, Berkeley
Post Ranch Inn, Big Sur
Anza-Borrego Desert State Park Visitor Center, Borrego Springs
Piute Mountain School, Caliente
Beckman Hall, Harvey Mudd College, Claremont
Kravis Center, Claremont McKenna College, Claremont
Teaching and Learning Center, Harvey Mudd College, Claremont
Glen Ivy Hot Springs Spa Grotto, Corona
Baldwin Hills Scenic Overlook visitor center, Culver City
Apple Headquarters auditorium, Cupertino
The Observatory event space, Cupertino
Forestiere Underground Gardens, Fresno
Acido Dorado vacation rental house, Joshua Tree
Neurosciences Institute, La Jolla
Southwest Fisheries Science Center, La Jolla
Miller Children's Hospital expansion, Long Beach
Foothills College Physical Sciences and Engineering Center, Los Altos Hills
7th and Figueroa Shopping Mall, Los Angeles
Arco Plaza Underground Mall, Los Angeles
Cedars-Sinai Cancer Center, Los Angeles
Clark Memorial Library addition, Los Angeles
Getty Center, Los Angeles
Griffith Observatory Expansion, Los Angeles
Hughes Aircraft Headquarters, Los Angeles
James M. Wood Community Center, Los Angeles
Japanese American Cultural and Community Center's James Irvine Garden, Los Angeles
Los Angeles Central Library addition, Los Angeles
Los Angeles City EOC, Los Angeles
Los Angeles Mall, Los Angeles
Los Angeles Museum of the Holocaust, Los Angeles
MOCA at California Plaza, Los Angeles
Moffett Elementary School, Los Angeles
Olvera Street/Chinatown Museum, Los Angeles
Science Center School, Los Angeles
United Airlines customs and immigration center, Los Angeles International Airport
La Marina Preschool, Manhattan Beach
Private Art Gallery, Napa
Castello di Amorosa, Napa Valley
Spa Terra at Meritage Resort, Napa
Muth Interpretive Center, Newport Beach
Orange County Museum of Art, Newport Beach
Oakland Museum of California, Oakland
Primatempra House, Pacifica
Rose Bowl Locker Room Facility, Pasadena
Diamond Ranch School, Pomona
Mojave Desert Visitor Center, Poppy Reserve
Chart House restaurant, Rancho Mirage
Lewis Hall, University of Redlands, Redlands
California State Office Building, Sacramento
Sutter Health Treatment Center, Sacramento
Geisel Building addition, UCSD, San Diego
Horton Plaza Lyceum Theatre, San Diego
Love Library expansion, SDSU, San Diego
Natural History Museum expansion, San Diego
Brooks Hall, San Francisco
California Palace of the Legion of Honor Expansion, San Francisco
Chinese Historical Society Museum, San Francisco
Lick-Wilmerding High School addition, San Francisco
Lo Sciavo Center for Science and Innovation, USF, San Francisco
Moscone Convention Center, San Francisco
Moscone Convention Center north addition, San Francisco
Pacific Heritage Museum, San Francisco
San Francisco General Hospital expansion, San Francisco
Student Health Services Building, SFSU, San Francisco
Marin County Jail, San Rafael
Fremont Elementary School, Santa Ana
Hoover School, Santa Ana
Wilson School, Santa Ana
Bacara Resort & Spa, Santa Barbara
University of California Music Center, Santa Cruz
Santa Monica Police Headquarters, Santa Monica
Nike Site SF-88L (museum), Sausalito
Artists' Studios, Oliver Ranch, Sonoma County
Stream Profile Chamber, South Lake Tahoe
Cancer Treatment Center, Stanford U, Stanford
Clark Center auditorium, Stanford U, Stanford
Lucas Center expansion, Stanford U, Stanford
Thousand Oaks Civic Arts Plaza, Thousand Oaks

Colorado
Sport-Obermeyer Warehouse & Offices, Aspen
Harris Concert Hall, Aspen
Isis Theater expansion, Aspen
Wildwood School, Aspen
Ritz-Carlton Spa, Beaver Creek
Vilar Center for the Arts, Beaver Creek
Quaker Meeting House, Boulder
NORAD Combat Operations Center, Cheyenne Mountain
Fire Station, Creede
Community Center & Mining Museum, Creede
Mollie Kathleen Gold Mine tour, Cripple Creek
Colorado Corrections Medical Facility, Denver
FEMA Regional Headquarters, Denver
Republic Plaza shops, Denver
Trinity United Methodist Church addition, Denver
Data-Lock record storage, Fort Collins
Yampah Spa and Vapor Caves, Glenwood Springs
State EOC, Golden
Indian Springs Resort Cave Baths, Idaho Springs
FEMA Operations Center, Lakewood
Water Treatment & Decontamination International, Leadville
Red Rocks Amphitheater Visitor Center, Morrison
Old Hundred Gold Mine Tour, Silverton
Rocky Mountain Institute Headquarters, Snowmass
Vail Library, Vail

Connecticut
Old New-Gate Prison (museum), East Granby
BMW Competition & Sports Cars Ltd., Greenwich
Greenwich Academy Upper School, Greenwich
Mark Twain House Museum, Hartford
Old State House museum, Hartford
Pequot Museum and Research Center, Mashantucket
Philip Johnson Art Gallery, New Canaan
Beinecke Library, Yale U, New Haven
Child Development Unit, Yale Child Study Center, New Haven
Bass (formerly Cross Campus) Library, Yale U, New Haven
Ingalls Hockey Rink expansion, Yale U, New Haven
Morse and Ezra Stiles College expansion, Yale U, New Haven
New Haven Sportsman's Club pistol range, New Haven
Horse Ridge Cellars Wine Storage, Somers

Delaware
Rodney Fitness Center, UD, Newark

District of Columbia
Amazonia Exhibit, National Zoological Park
Caverns Jazz Lounge
DC Court of Appeals addition
East Building of National Gallery of Art
Federal Triangle Hemicycle
Folger Shakespeare Library addition
Fort Davis Center
Kennedy Center addition
La Promenade at L'Enfant Plaza
Lexington Apartments retail space
Marriott Hall, St. Alban's School
National Cathedral shop & offices
National Cathedral School Athletic Center
National Law Enforcement Museum
National Portrait Gallery & American Art Museum auditorium
Old Holy Trinity Church administration addition
Phillips Collection Center for Studies of Modern Art (addition)
Sidwell Friends Middle School Athletic Center
Smithsonian South Quadrangle (Sackler Gallery & African Art Museum)
Supreme Court addition
TJ Maxx, Chevy Chase Metro Plaza
Turkish Chancery
US Capitol Visitor Center
Washington Convention Center
White House expansion
Yates Field House, Georgetown University

Florida
Auditorium, U of Florida, Gainesville
Dickinson Hall, U of Florida, Gainesville
Science Building, Florida Southern College, Lakeland
Westinghouse Headquarters, Orlando
Palm Beach Police Department shooting range, Palm Beach
Peanut Island Shelter Museum, Peanut Island

Georgia
Flint River Center, Albany
Alpha Web Hosting Data Center, Atlanta
Underground Atlanta, Atlanta
Sweetwater Creek Visitor Center, Lithia Springs
Shenandoah Community Center, Shenandoah

Hawaii
Nanea Clubhouse, Kailua-Kona, Big Island
Iron Mountain Inc. data storage, Oahu
National Security Agency intelligence receiving hub, Oahu

Idaho
Amity Elementary School, Boise
Idaho Capitol addition, Boise

Illinois
Cave Room, Jackson House B&B, Alton
Fermilab, Batavia
Assembly Hall addition, University of Illinois, Champaign
Menard Prison, Chester
Adler Planetarium addition, Chicago
Field Museum addition, Chicago
Ford City Shopping Center, Chicago
Harris Theater for Music and Dance, Chicago
Interdivision Research Building, U of Chicago, Chicago
Mansueto Library, U of Chicago, Chicago
Museum of Science and Industry additions, Chicago
Pedway shops, Chicago
Shedd Aquarium addition, Chicago
Lake Forest Library, Lake Forest
Maximum-Security Federal Prison, Marion
Veterinary Clinic, Michigan City
Underground Warehouses Inc., Quincy
MacLean-Fogg Factory, Richmond
Spring Valley Visitor Center, Schaumberg
University of Illinois Library, Urbana
National Coal Museum, West Frankfort

Indiana
Anderson University Library expansion, Anderson
Simon Hall, Indiana University, Bloomington
Oaklyn Library, Evansville
Willard Library addition, Evansville
Christ Church Cathedral expansion, Indianapolis
Controlled Pharming Ventures, Marengo
North Harrison Elementary School, Ramsey
Fitzpatrick Hall of Engineering, Notre Dame, South Bend
Hicks Undergraduate Library, Purdue U, West Lafayette
PRIME Lab, Purdue U, West Lafayette

Iowa
Midwest Data Storage, Cedar Falls
University Union, University of Northern Iowa, Cedar Falls
Des Moines Art Center vault, Des Moines
InfoBunker, Des Moines
GuideOne Insurance Office addition, West Des Moines
Carver-Hawkeye Sports Arena, University of Iowa, Iowa City
School of Art and Art History Building, University of Iowa, Iowa City
Ballou Library Addition, Buena Vista University, Storm Lake
Siebens Forum, Buena Vista University, Storm Lake

Kansas
Underground City tour, Ellinwood
Jackson Heights High School, Holton
Salt Museum, Hutchinson
Underground Vaults & Storage, Hutchinson
Anderson Family Football Complex, University of Kansas, Lawrence
Oread Inn, Lawrence
Tivol Jewels offices, Hawthorne Plaza, Leawood
Cavern Technologies, Lenexa
Lenexa Conference Center addition, Lenexa
Meritex Lenexa Executive Park, Lenexa
20th Century Castles, Topeka
State Capitol expansion, Topeka

Kentucky
Lexington-Fayette Detention Center, Lexington
e-Cavern Data Center, Louisville
Louisville Underground, Louisville
StrataSpace Data Center, Louisville
Global Data Corporation data center, Stone Mountain
Kentucky Underground Storage, Wilmore

Louisiana
State Capitol Senate office expansion, Baton Rouge
Natural History Research facility, Tulane U, Belle Chasse
Calcasieu Parish Government Building addition, Lake Charles

Maine
State House addition, Augusta
Hawthorne-Longfellow Library Expansion, Bowdoin College, Brunswick
Walker Art Building addition, Bowdoin College, Brunswick
Camden Public Library addition, Camden

Maryland
Greenfield Library annex, St. John's College, Annapolis
Baltimore Convention Center expansion, Baltimore
Baltimore-Washington International Airport fire & rescue facility, Baltimore
Peabody Institute, Johns Hopkins U, Baltimore
Worldbridge Trade and Investment Center, Baltimore
Historic London Town and Gardens visitor center, Edgewater
NIST Advanced Measurement Laboratory, Gaithersburg
Robinson Nature Center, Howard County
Federal Realty Investment Trust headquarters, Rockville
Regal Cinemas, Rockville
NOAA Satellite Operations Facility, Suitland

Massachusetts
Du Bois Library, UMass, Amherst
Fisher/Watkins Library, Cushing Academy, Ashburnham
Belmont Hill School Athletic Center, Belmont
Judge Baker Children's Center addition, Boston
Museum of Fine Arts addition, Boston
Northeast Proton Therapy Center, Boston
Trinity Church expansion, Boston
Underground Art Gallery, Brewster
Underground Mall, Brewster
Bauer Laboratory Building, Harvard U, Cambridge
Cabot Science Center, Harvard U, Cambridge
Countway Library, Harvard U, Cambridge
Fogg Art Museum addition, Harvard U, Cambridge
Integrated Science & Engineering Library, Harvard U, Cambridge
New College Theater, Harvard University, Cambridge
Northwest Science Building, Harvard University, Cambridge
Pusey Library, Harvard University, Cambridge
Chesterfield Custom Inc, Chesterfield
Higgins Hall, Boston College, Chestnut Hill
Higgins Hall addition, Boston College, Chestnut Hill
State EOC, Framingham
College Library Repository, Hadley
FEMA Regional Center, Maynard
Lyman Conservatory expansion, Smith College, Northampton
Radiation Therapy Department, Dickinson Hospital, Northampton
University Club and food court, Smith College, Northampton
Bank of Boston Records Storage, Pepperell
Bear Swamp Visitor Center, Rowe
New North Community School, Springfield
Sterling & Francine Clark Art Institute expansion, Williamstown
Antiquarian Hall addition, Worcester

Michigan
Towsley Center Organ Studio, U of Michigan, Ann Arbor
University of Michigan Law Library addition, Ann Arbor
State Capitol Visitor Center, Lansing
Federal Building, Saginaw (1976-1999)
US Port of Entry, Sault Ste Marie
Kresge Foundation headquarters building, Troy
Waterford Police Department shooting range, Waterford Township
SubTerra agriculture, White Pine

Minnesota
TH-53 Rest Area, Anchor Lake
Underwater Adventures aquarium, Bloomington
I-90 Rest Area (demolished), Blue Earth
St. John's University Student Housing, Collegeville
Solon Campus Center, U of MN, Duluth
Minnesota Vikings Headquarters, Eden Prairie
Oliver H. Kelley Farm Visitors Center, Elk River
I-90 Rest Area (demolished), Enfield
I-90 Rest Area, Hayward
Earth Inn, Jackson
Anderson Library, U of MN, Minneapolis
Bakken Library and Museum addition, Minneapolis
Civil & Mineral Engineering Building, U of MN, Minneapolis
Emergency Communications Center, Minneapolis
Federal Reserve Building (former), Minneapolis
Ft. Snelling Visitor Center, Minneapolis
International Dispatch Center, Minneapolis
Minnesota Library Access Center, Minneapolis
Southeast Library, Minneapolis
Walker Community Library, Minneapolis
Williamson Hall, U of MN, Minneapolis
Holaday Circuits headquarters and factory, Minnetonka
Morgan Creek Vineyards, New Ulm
Central Elementary School, Norwood Young America
Maximum Security Prison, Oak Park Heights
Hunt Technologies headquarters, Pequot Lakes
Underground walkways and shops, Rochester
Wabasha Street Caves meeting/party facility, St. Paul
Terratech Center offices, St. Paul
Criteria Inc Offices, St. Paul
Soudan Underground Physics Lab, Soudan

Mississippi
State Capitol Expansion, Jackson
ZCSS.com Data Center, Three Rivers

Missouri
Morningside Church and Community, Blue Eye
Scuba Diving in Bonne Terre Mine, Bonne Terre
Ozark Mountain Underground Storage, Branson
Ozark Underground Laboratory, Branson
The Mountain Data Center, Branson
Americold Logistics, Carthage
Underground Racquets, Carthage
Wilson School Gym, Clayton
Crystal City Underground Sports Complex, Crystal City
Stone Hill Winery Cellars, Hermann
Space Center Executive Park, Independence
Carefree Industrial Park, Independence
Commercial Distribution Center Inc., Independence
Missouri National Guard Headquarters, Jefferson City
State EOC, Jefferson City
Underground Paintball, Joplin
Brunson Instrument Company, Kansas City
Hunt Midwest SubTropolis, Kansas City
Interstate Underground Warehouse, Kansas City
Jaegers Subsurface Paintball, Kansas City
James Printing, Kansas City
Metropolitan Community College, Penn Valley, Kansas City
Metropolitan Community College, Maple Woods, Kansas City
National World War I Museum, Kansas City
Nelson-Atkins Museum of Art addition, Kansas City
Whiteman AFB Missile Museum, Knob Noster
National Archives & Records Storage Center, Lee's Summit
Space Center Summit, Lee's Summit
Rush Creek Properties, Liberty
Daisy Airgun Factory (former), Neosho
Ozark Terminal industrial park, Neosho
Parkville Commercial Underground, Parkville
Park University, Parkville
Reeds Spring Middle School, Reeds Spring
Caveman Bar-BQ & Steak House, Richland
Bussen Underground, St. Louis
Gateway Arch Visitor Center, St. Louis
Missouri History Museum expansion, St. Louis
St. Louis Art Museum addition, St. Louis
Office of Emergency Management. St. Louis County
85Under Data Center, Springfield
Medical Center for Federal Prisoners, Springfield
PaperWise Data Center, Springfield
PHNS Data Center, Springfield
Springfield Underground, Springfield
Meramec Caverns, Stanton
Innerspace Storage Corporation, Sugar Creek

Montana
Underground City tour, Havre
Sweetgrass Rest Area, Sweetgrass

Nebraska
Heritage Center at the Homestead National Monument, Beatrice
Museum of the Fur Trade, Chadron
Harriman Dispatching Center, Omaha
Mutual of Omaha Headquarters addition, Omaha
Benedictine Mission House, Schuyler

Nevada
Richards Car Museum & Golf Course Offices, Carson City
Dolphin Court Grand Spa at Green Valley Ranch Station, Henderson
Nuclear Waste Repository (deactivated), Yucca Mountain

New Hampshire
Intervale Scenic Vista Visitors Center, Conway

New Jersey
AT&T Global Operations Center, Bedminster
Office Building, Cherry Hill
Novartis Pharmaceuticals Research Center, East Hanover
Vital Records Inc., Flagtown
Becton, Dickinson and Company Campus Center, Franklin Lakes
Poor Richard's Winery, Frenchtown
East Pyne addition, Princeton U, Princeton
Fine Hall, Princeton U, Princeton
Firestone Library, Princeton U, Princeton
Firestone Library addition, Princeton U, Princeton
Jadwin Gym, Princeton U, Princeton
Marquand Art Library addition to McCormick Hall, Princeton U, Princeton
Math-Physics Library, Princeton U, Princeton
McDonnell Hall, Princeton U, Princeton
Robertson Hall addition, Princeton U, Princeton
The Annex Restaurant, Princeton
Whitman Theater & Servery, Princeton U, Princeton
Vital Records Inc., Roxbury

New Mexico
Indian Pueblo Cultural Center, Albuquerque
Centennial Science & Engineering Library, UNM, Albuquerque
Parish Library, UNM, Albuquerque
Regener Hall, UNM, Albuquerque
First Plaza Galeria, Albuquerque
University Arena (The Pit), Albuquerque
Zimmerman Library addition, UNM, Albuquerque
Vietnam Veteran's National Memorial Visitor Center, Angel Fire
Abo Elementary School (closed), Artesia
Artesia Park Junior High School, Artesia
Waste Isolation Pilot Project (WIPP), Carlsbad
Dobson House B&B, El Prado (near Taos)
Kokopelli's Cave B&B, Farmington
New Mexico Mining Museum, Grants
Woolworth Library, Jal
Neutron Science Center, Los Alamos
Goddard Senior High School, Roswell
Corner Cottage Earthship Nightly Rental, near Taos
HelioHouse Earthship Nightly Rental, near Taos
Studio Earthship Nightly Rental, near Taos
Spaceport America, Upham

New York
ATLAS-F Missile Silo Home, Adirondack State Park
Empire State Plaza, Albany
Physics Laboratory, University at Albany, Albany
State Emergency Management Office, Albany
Heimbold Visual Arts Center, Sarah Lawrence College, Bronxville
Bushwick Inlet Park community center, Brooklyn
Brooklyn Botanic Garden visitor center, Brooklyn
Brooklyn Children's Museum, Brooklyn
New York Transit Museum, Brooklyn
Tilles Center for the Performing Arts, Brookville
Queens Botanical Garden Reception and Administration Building, Flushing
Facilities Management Building, SUNY, Fredonia
Greenporter Spa, Greenport
Iron Mountain Records Management, Iron Mountain
Fieldstone Suite overnight rental home, Ithaca
Johnson Museum of Art addition, Cornell U, Ithaca
Kroch Library, Cornell U, Ithaca
Museum of the Earth, Ithaca
Myron Taylor Hall addition, Cornell U, Ithaca
Sage Hall addition, Cornell U, Ithaca
Undergraduate Library, Cornell U, Ithaca
University Campus Store, Cornell U, Ithaca
Wine-Storage Cave, Kingston
Apple computer store, Manhattan
Barneys Loading Dock, Manhattan
Brasserie 8-1/2 Restaurant, Manhattan
Chemical Bank, Manhattan
Donnell Branch Library, Manhattan
Knitting Factory music venue, Manhattan
Federal Reserve Bank Vault, Manhattan
International Center of Photography School, Manhattan
Juilliard School's Tully Hall, Manhattan
Mulberry Street Library, Manhattan
New Horizons Computer Learning Center, Manhattan
New World Theaters, Manhattan
New York Law School expansion, Manhattan
New York Main Library expansion, Manhattan
Rockefeller Center Mall, Manhattan
Spence School Gymnasium, Mahnattan
Solomon Guggenheim Expansion, Manhattan
Steinberg Center for Theatre, Manhattan
Suba Restaurant, Manhattan
Whole Foods Market, Manhattan
World Trade Center 9/11 Museum, Manhattan
Zankel Hall at Carnegie Hall, Manhattan
Mary Flagler Cary Arboretum, Millbrook
College of New Rochelle Wellness Center, New Rochelle
Avery Hall addition, Columbia U, New York City
Bridgemarket, New York City
Condo Spa & Theater, New York City
Congo Gorilla Forest, Bronx Zoo, New York City
Dodge Physical Fitness Center, Columbia U, New York City
Lycee Francais, New York City
Maxim Soho Spa, New York City
Morgan Library addition, New York City
Museum of American Folk Art, New York City
Museum of the City of New York addition, New York City
NYU classrooms beneath Gould Plaza, New York City
NYU Law Library addition, New York City
Planet Hollywood, New York City
Proskauer Rose Law Library, New York City
Suba Restaurant, New York City
George Eastman House archives building, Rochester
Skidmore Permanent Art Collection (former), Saratoga Springs
Stony Brook University Medical Center Expansion, Stony Brook
Performing Arts Center, Rensselaer Polytechnic, Troy
Munson-Williams-Proctor Institute expansion, Utica
Brotherhood Winery Cellars, Washingtonville

North Carolina
Asheville Mall expansion, Asheville
Blue Ridge Parkway Destination Center, Asheville
Grove Park Inn Spa, Asheville
Media Center, Mars Hill College, Mars Hill
Raleigh Convention Center, Raleigh
Reed Gold Mine Museum, Stanfield
The Swag Racquetball Court, Waynesville

North Dakota
Emergency Disaster Service Building, Bismarck

Ohio
Seiberling Naturealm Visitor Center, Akron
Shoker Science Center, Bluffton College
Aronoff Center, U of Cincinnati, Cincinnati
Cleveland Convention Center expansion, Cleveland
Health Sciences Bldg, Cleveland State U, Cleveland
Rock and Roll Hall of Fame and Museum, Cleveland
Tower City Center Shops, Cleveland
Cleveland Institute of Music Library underground addition, Cleveland
State EOC, Columbus
Wexner Center for the Arts, Ohio State U, Columbus
Sinclair Community College Library, Dayton
Pyramid Hill Museum house, Hamilton
Bellflower Elementary School, Mentor
The Mound Laboratories, Miamisburg
The Honeycombs at Honey Run Inn & Spa, Millersburg
Dana Center, Medical College of Ohio, Toledo
I-77 Rest Area, Southeast Ohio
Armstrong Air and Space Museum, Wapakoneta

Oklahoma
Junior-Senior High School, Blanchard
Davis Elementary School, Davis
Middle School, Davis
Elementary & High School, Duke
Elementary School, Hydro
Delaware County Jail, Jay
H-Unit, Oklahoma State Penitentiary, McAlester
Jones Museum of Art, U of OK, Norman
Longfellow Middle School, Norman
Conncourse tunnels and shops, Oklahoma City
Emergency Operations Center, Oklahoma City
John Glenn Elementary School, Oklahoma City
Health Professions Center, Oklahoma City Community College, Oklahoma City
Original Building, Oklahoma City Community College, Oklahoma City
Patience S. Latting Northwest Library
Elementary School, Prague
Sayre Elementary School addition, Sayre
Elementary School, Seiling
Bethel High School, Shawnee
Sabre Inc., Tulsa
High School, Tupelo
High School, Washington
Weleetka Elementary School, Weleetka
Elementary & Junior High School, Wellston

Oregon
Sokol Blosser Winery, Dundee
Lokey Science Building, U of OR, Eugene
Underground City tours, Pendleton
Melting Pot restaurant, Portland
Memorial Colliseum exhibit hall, Portland
Portland Art Museum addition, Portland
Underground City tour, Portland
Visitor Center Theater, Portland
Multnomah County Maintenance Building, Portland

Pennsylvania
Iron Mountain/National Underground Storage, Boyers
Grundy Memorial Library, Bristol
Dalton Hall addition, Bryn Mawr
Rhys Carpenter Library, Bryn Mawr
Thomas Hall Library addition, Bryn Mawr
US Storage, Cabot
Bradys Bend Corp. Storage, East Brady
Raven Rock Mountain, Fountain Dale
Rohrer's Quarry ready-mix concrete plant, Lititz
Montgomery County EOC, Lower Providence
Calder Court, Philadelphia
Franklin Court Museum, Philadelphia
Houston Hall addition, U of PA, Philadelphia
Museum expansion, U of PA, Philadelphia
Penn Center Underground Shops, Philadelphia
Philadelphia Museum of Art addition, Philadelphia
Roberts Proton Therapy Center, U of PA, Philadelphia
Septa's Suburban Station Concourse Mall, Philadelphia
Wilma Theater, Philadelphia
Athletic Center, Chatham College, Pittsburgh
Phipps Conservatory and Botanical Gardens' Expansion, Pittsburgh
Posner Family Collection Gallery, Carnegie Mellon U, Pittsburgh
Flight 93 Memorial Visitor Center, Somerset County
Valley Forge Visitor Center, Valley Forge
Gateway Commerce Center, Wampum
L-3 Brashear Optical Instrument factory, Wampum
Mines & Meadows ATV riding resort, Wampum
Creekside Mushrooms, Worthington

Rhode Island
Redwood Library addition, Newport
Multidisciplinary Teaching Lab, Brown U, Providence

South Carolina
Charles Towne Landing Museum (closed), Charles Towne Landing
Strom Thurmond Institute, Clemson
West Quad Learning Center, U of SC, Columbia

South Dakota
Minuteman Missile National Historic Site, Cactus Flats
Deep Underground Science and Engineering Laboratory (DUSEL), Lead
Cultural Heritage Center, Pierre

Tennessee
Raccoon Mountain pumped storage power plant, Chattanooga
Cumberland Commerce Center, Cumberland
FedEx, Memphis
Governor's mansion meeting facility, Nashville
Legislative Plaza, Nashville
Military History Museum, Nashville
Joint Institute Dormitory, ORNL, Oak Ridge

Texas
Dive Valhalla, near Abilene
I-40 Rest Area, Amarillo
High School, Aspermont
State EOC, Austin
Texas Capitol expansion, Austin
Dakota's Restaurant, Dallas
Nasher Sculpture Center, Dallas
The Underground pedestrian tunnels and shops, Dallas
Undermain Theatre, Dallas
Wyly Theatre, Dallas
Federal Civil Defense Administration Shelter, Denton
Kimbell Art Museum addition, Fort Worth
Main Library (former), Fort Worth
Washington Heights Elementary School, Fort Worth
Inner Space Cavern, Georgetown
City Hall, Hale Center
Cullen Performance Hall Annex, UH, Houston
Houston Tunnel System (shops), Houston
Law Library, UH, Houston
James Turrell skyspace, Rice University, Houston
University Center Satellite, UH, Houston
University Center Underground, UH, Houston
James Hodgkins Intermediate School, Lake Worth
Lake Worth High School, Lake Worth
Elementary School addition, Laredo
United High School, Laredo
Lawn Atlas Missile Base party venue, Lawn
Law School Library addition, Texas Tech, Lubbock
St. John Neumann Catholic Church, Lubbock
Experian Data Center, McKinney
Westlin Corporation secured data center and disaster recovery facility, Montgomery
Missile Silo Home & Private Tours, Oplin
AT&T switching center, Plano
Ethicon factory, San Angelo
Lucile Halsell Conservatory, San Antonio

Utah
Granite Mountain Genealogy Center, Granite Mountain
Hollow Mountain Gas & Grocery, Hanksville
Homestead Crater Scuba Diving, Heberville
Moqui Cave museum, near Kanab
Amangiri Canyonlands Resort and Spa, Kane County
Center 7 Data Bunker, Lindon
Hole 'n the Rock Trading Post, Moab
Spiro Tunnel Ski Lift & Museum, Park City
Eyring Science Center addition, BYU, Provo
IT Building, BYU, Provo
Lee Library addition, BYU, Provo
Engineering & Mines Building (former), U of UT, Salt Lake City
LDS Conference Center, Salt Lake City
Marriott Library addition, U of UT, Salt Lake City
Student Services Building, U of UT, Salt Lake City
Utah Museum of Natural History, U of UT, Salt Lake City
Perpetual Storage Inc., Sandy

Vermont
IBM Plant expansion, Burlington
Hartness House Inn Museum, Springfield

Virginia
Pentagon Expansion, Arlington
Women in Military Service to America Memorial, Arlington
Janelia Farm Research Campus, Ashburn
Mount Weather, Berryville
Burchard Hall, Virginia Tech, Blacksburg
Terra Centre Elementary School, Burke
Winthrop Rockefeller Archaeology Museum (closed), Carter's Grove
Dulles Airport Passenger Screening Facility, Chantilly
Special Collections Library, U of VA, Charlottesville
Thomas Jefferson Visitor Center, Charlottesville
Crystal City Shopping, Crystal City
Library of Congress Audio-Visual Conservation facility, Culpeper
National Museum of the United States Army, Fort Belvoir
Education Center and Museum, Mount Vernon
National Museum for the Marine Corps, Quantico
National Art Education Headquarters, Reston
Terraset Elementary School, Reston
State Capitol Building addition, Richmond
DISA headquarters, Skyline City
DeWitt Wallace Gallery, Williamsburg

Washington
Public Library (closed), Arlington
Peace Arch Port of Entry, Blaine
FEMA Regional Center, Bothell
Coldwater Ridge Visitors Center/Johnston Ridge Volcano Observatory, Castle Rock
Maryhill Museum of Art expansion, Goldendale
Analytical Chemistry Building, PNL, Hanford
State Capitol expansion, Olympia
Johnson Ridge Observatory, Pinchot National Forest
Central Library closed stacks addition, Seattle
Fisher Pavilion, Seattle
Foster Business Library, UW, Seattle
Henry Art Gallery addition, Seattle
IMA addition (1982), UW, Seattle
Law Library, UW, Seattle
Medical Center Surgery Pavilion, UW, Seattle
Mueller Hall, University of Washington, Seattle
Olympic Sculpture Park Pavilion, Seattle
Ranier Square shops, Seattle
Subterranean City tour, Seattle
Central Pre-Mix Concrete Co. headquarters, Spokane
North Central High School, Spokane
Blue Ridge Elementary School, Walla Walla

West Virginia
Sparks Sport Center shooting range, Martinsburg
Shepherdstown Library addition, Shepherdstown
Greenbrier Congressional Shelter, White Sulphur Springs
Greenbrier Resort Casino, White Sulphur Springs

Wisconsin
Sigurd Olson Environmental Institute, Ashland
St. Benedict's Abbey, Benet Lake
Bleu Mont Dairy cheese factory, Blue Mound
Indian Community School, Franklin
Mary Ann Cofrin Hall, U of WI, Green Bay
Instructional Services Building, U of WI, Green Bay
Student Services Building, U of WI, Green Bay
The American Club under-courtyard conference rooms, Kohler
Computer Services Dept, Western WI Technical College, La Crosse
Froedtert Cancer Center, Milwaukee
Milwaukee Rowing Club, Milwaukee
St. John Mine museum, Potosi
Fortaleza Hall, SC Johnson campus, Racine
Epic Systems Auditorium, Verona
Epic Systems Data Center, Verona
Dairy Queen, Washburn

Wyoming
A-Square Co. rifle test range, Glenrock
National Museum of Wildlife Art, Jackson
Science Library, U of WY, Laramie
List updated September 11, 2024.