A gorgeous example of 1920's expressionism (an type of early modernism, related to art deco), the Kameleon - originally known as Kaufhaus Rudolf Petersdorff - was designed by Erich Mendelsohn, responsible also for the Einstein Tower in Potsdam and the Mossehaus in Berlin. Completed in 1928, the department store was one of the first buildings in Wrocław to have a steel frame.