Germany Shell Building

The shell house is unique because of its shape, construction and materials. Fahrenkamp creates the dynamics of a wave: the building always jumps forward by a window front along its length and at the same time increases by one storey. The rounded corners of the building and the windows reinforce the wave movement. So it's a nice building to ply withe the camera there ;)....
BTW,
The Kulturforum at Potsdamer Platz with further sights of Berlin Modernism is located very close to the Shell House.