Residents walk through the renovated doorway of the southern barbican entrance to Wanquan Castle in Wanquan County, north China's Hebei Province, Nov. 23, 2016. Wanquan Castle, built in 1393, is a military castle of the Ming Dynasty (1368-1644). The main part of a renovation project to restore the ancient building has been completed recently. (Xinhua/Yang Shiyao)