Visitors view ancient bronze mirrors in an exhibition at the Jilin Provincial Museum in Changchun, capital of northeast China's Jilin Province, Aug. 24, 2012. A total of 163 ancient bronze mirrors from the Shaanxi History Museum in Xi'an, capital of northwest China's Shaanxi Province, were on display in the 55-day exhibition opening at the Jilin Provincial Museum on Friday. (Xinhua/Lin Hong)