Wan'an Bridge, a timber arch lounge bridge, is seen in Changqiao Village of Pingnan County, southeast China's Fujian Province, Dec. 21, 2012. Built in the Northern Song Dynasty (960-1127) and rebuilt several times since then, the bridge is 98.2 meters long and 4.7 meters wide. It has been listed as one of the state key cultural relics protection units. (Xinhua/Zhang Guojun)