Archaeologists excavate at the No. 2 pit of the Museum of Qin Shihuang Terracotta Warriors and Horses in Xi'an, capital of Northwest China's Shaanxi province, April 30, 2015. The first stage of excavation started in 1994 and uncovered eight well-preserved, colored terracotta figures. Archaeologists plan to unearth an area of 200 square meters in the second stage.[Photo/ecns.cn]