The Ampelmann is a popular sign that came from the former East Germany. The pedestrian crossing signals in the former East depicted a man with a big hat either walking or standing still. These signals were so well-loved that the former West has also adopted them and there are lots of souvenirs and shops dedicated to the Ampelmann. I haven't yet tried this cafe which is on the Ku'damm, but maybe I will come this spring! For more signs, visit Signs, Signs.