A man wearing a Peking Opera mask on the back of head, prays at the Yonghegong Lama Temple, the biggest Tibetan Buddhist lamasery in Beijing February 19, 2010. [Photo/Agencies] 

Terracotta warriors, which were unearthed during the first excavation from 1978 to 1984, stand inside the No.1 pit of the Museum of Qin Terracotta Warriors and Horses in Xi'an, Shaanxi province, February 19, 2010. [Photo/Agencies]