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Buildings are being inserted into the protective earth all over the world. If you would like to find out about the latest, set up a Google Alert for "underground building." You'll be surprised at what you discover!
Calder Gardens, a new art museum in Philadelphia, opened in September 2026. A 13,281-square-foot gallery sits under a beautifully landscaped park.
Buildings are being inserted into the protective earth all over the world. If you would like to find out about the latest, set up a Google Alert for "underground building." You'll be surprised at what you discover!
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Calder Gardens, a new art museum in Philadelphia, opened in September 2026. A 13,281-square-foot gallery sits under a beautifully landscaped park..
