Staff members measure at the ruins of Haifeng Town in Huanghua City, north China's Hebei Province, Nov. 24, 2016. A 6-meter-wide main road, flanked on both sides by the ruins of buildings, has been unearthed at the ruins of Haifeng Town, which is dated back to the Jin (1115-1234) and Yuan (1271-1368) dynasties. (Xinhua/Mou Yu)
