XIAN, CHINA - OCTOBER 10: (CHINA OUT) A copper erotic sculpture with a giant phallus titled "A part can not be bound," is displayed at Xian Branch of the Chinese Sex Museum on October 10, 2006 in Xian of Shaanxi Province, China. The museum, opened in September 2006, is the China's fifth sex museum for public viewing of collections of erotic arts. The exhibit contains about 450 pieces of arts, sculptures, tapestries and artifacts gathered by the two founders Liu Dalin and Hu Hongxia, both are famous sociologists on sex issues in China. (Photo by China Photos/Getty Images)