Sun Yatsen Memorial Hall, built in 1931, is a famous commemorative structure of the Chinese revolution of 1911. It was designed by the well-known architect of modern China, Lu Yanzhi, who was also the designer of the Sun Yatsen Mausoleum in Nanjing. The building complex is composed of the arch over the gateway, the auditorium, and the several-storied buildings to the east and west. The auditorium is octagonal--in the shape of the palace hall.