Brick firewalls are seen between adjacent frontages in the ancient town of Jingziguan in Xichuan County, central China's Henan Province, Aug. 4, 2013. As a former local trade center located on old trade routes, the town boasts more than 700 well-preserved ancient buildings dating back to the Ming Dynasty (1368-1644) and the Qing Dynasty (1644-1911). (Xinhua/Wang Song)