File photo taken on Aug. 19, 2012 shows an actor performs face-changing, a stunt technique in Sichuan opera, at the Wuhou Shrine Museum in Chengdu, capital of southwest China's Sichuan Province. Sichuan opera is one of the oldest forms of Chinese opera, distinguished by face-changing, fire-spitting and other stunts. Regionally Chengdu remains to be the main home of Sichuan opera, while other influential locales include Yunnan, Guizhou and other provinces in southwest China. (Xinhua/Xue Yubin)