The Waldspirale is the name of this unique building located in Darmstadt, Germany. It is translated into English as Forest Spiral which is suitable both because of the general plan of the building and the fact that it has a green roof. The complex was designed by the world famous Austrian architect Friedensreich Hundertwasser, built by the Bauverein Darmstadt company. Hundertwasser’s idea was to plan the building so that it rose up on the site in the form of an afforested spiral. The design expresses irregular, organic forms in an incomparable individualism. Spiral Forest contains 12 floors and 105 apartments, a parking garage, a kiosk as well as a café and a bar. The café is located at the top of the residence opening a breathtaking view. This building can’t be unnoticed. Among the peculiarities are irregular organization, the windows, which appear as if they were “dancing out of line”, the diagonal roof, planted with grass, shrubs, flowers and trees.