Designed by the Austrian artist Friedensreich Hundertwasser, Waldspirale (“Forest Spiral”) is a large spiral residential building with a forest on its twisting roof in Darmstadt, Germany. The structure consists of 105 apartments and more than 1000 unique windows. At its highest level, the building has 12 floors, and the residents can climb to the roof which includes a cafe and a bar.

emidio.scaldaferri

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