Children sit at a door of a courtyard in Linfeng village, a complex built with red rocks, in Tangjie town of Pingdingshan city, Central China's Henan province, July 23, 2016. The village features rock walls with seven meters tall and 1,100 meters in length. There are over 20 courtyard dwellings and around 400 houses of Qing Dynasty (1644-1911) built inside. [Photo/Xinhua]