House of World Cultures, Berlin

The building was the United States' contribution to the International Building Exhibition (Interbau) of 1957, designed by Hugh Stubbins, who had been Walter Gropius's assistant at Harvard before the Second World War. The freeform was intended as a symbol of freedom. The Mirror Pond is a clear example of abstract modernism applied to garden design and, appropriately, contains a 'Butterfly' sculpture by Henry Moore.