Actors perform Empress Wu Buddha-worship Ceremony in front of the statue of Buddha losana at Longmen Grottoes scenic spot in Luoyang, central China's Henan Province, Oct. 16, 2006. The ceremony is an imitation of the Buddha-worship ritual of Empress Wu Zetian, the only empress in Chinese history, according to records of the murals and statues of Longmen Grottoes.(Xinhua Photo) Photo Gallery >>>