A former German WWII bunker, the Tirpitz cultural museum is embedded into the landscape with walls cut into the dunes.

Tirpitz
Blåvand, Denmark
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Tirpitz
Blåvand, Denmark
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Tirpitz
Blåvand, Denmark
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Twenty-one colorful overlapping blocks make up Lego House in Billund, Denmark.

Rooftops at Lego House are accessible via pixelated public staircases.

Lego House
Billund, Denmark
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Waste-to-energy plant Amager Resource Center in Copenhagen doubles as an extreme sport destination with a ski slope and public park on the roof.

Amager Resource Center
Copenhagen
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The Big U is a protective system around Manhattan, comprising 10 continuous miles of low-lying geography, aimed at safeguarding the city from natural disasters like Hurricane Sandy.

Big U
New York
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Big U
New York
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Big U Reverse Aquarium
New York
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The parking area of the Mountain in Copenhagen, one of BIG’s first projects, serves as the foundation of the tiered homes, complete with roof gardens.

The Mountain
Copenhagen
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The Mountain
Copenhagen
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The two twisting towers of the mixed-use Eleventh project in New York, developed by HFZ Capital Group.

Via 57 West in New York, what Ingels calls a “courtscraper,” features a courtyard cut out of the center of the building.