Photo taken on May 18, 2013 shows a renovated sunken courtyard in Qucun Village of Zhangbian Township in Shaanxian County, central China's Henan Province. The sunken courtyard, a kind of traditional residential construction in west Henan, has a high value in the study of local histroy, architecture, geology and sociology. The Qucun Village has 115 sunken courtyards, most of which are under protective reconstruction. (Xinhua/Zhao Peng)