A tourist wipes sweat from the forehead of an honor guard at the No. 1 Pit of the Mausoleum of Emperor Qinshihuang in Xi’an, capital of Northwest China’s Shaanxi province, May 2, 2015. According to regulations, armed guards cannot move while standing guard. Although the visitor's help was appreciated, approaching an honor guard while they are on duty is not allowed, according to an official police weibo account. (Photo/hsw.cn)
