Austrian architect Otto Schönthal submitted his works to the 1928 Art Competitions in Amsterdam together with his partner Emil Hoppe, with whom he shared his office. Their mutual entries comprised realized, as well as unrealized, projects and included, for instance, the trotting course at the Rotonde in Wien (Vienna) (today Trabrennbahn Krieau, 1911-13), the Letná Stadium in Praha (1921, burned down in 1934), the trotting course in Marianske Lázne (opened in 1922, still in use for speedway races), the competition project for the stadium in Wien in the Schönbrunn Fasangarten with 20,000 seats and standing room for 80,000 (1924) and a planned beach resort in Bad Aussee. Schönthal was an architect, interior designer and furniture designer. He later edited the magazine The Architect. In 1939 after the “Anschluss” of Austria the Jewish Schönthal moved to Switzerland and later to Yugoslavia. After World War II, he again led his own office in Wien. Schönthal, whose father was an architect, studied from 1898-1901 at the Academy of Fine Arts in Wien.