Tourists visit Shuangjiang ancient town in Tongnan District of southwest China's Chongqing, March 10, 2021. Shuangjiang ancient town, located in Tongnan District of Chongqing, was built in the late Ming (1368-1644) and early Qing (1644-1911) dynasties. In recent years, the local authority has restored the town based on its original appearance. (Xinhua/Wang Quanchao)