One of the most dedicated proponents of Germany's postwar New Building movement, this architect also used the camera from 1929 to express the impulse of modernism along with the ideals of New Objectivity and New Vision, traveling to Paris, Marseille, North Africa, and in 1931 to the United States. In spite of prodigious accomplishments, he was banned from working as an architect in Germany in 1933 and from publishing his pictures; he then turned entirely to the medium on extensive trips abroad, including a Zeppelin flight to Rio de Janeiro and a world cruise, eventually emigrating to Los Angeles, where he focused on color slides for educational purposes.