Qingtang City Ruins Park is a park built in the south of the ancient city wall of Nantan, which is part of the southern city wall of Qingtang City, built in 1034. During the Tang Dynasty, it was called Yucheng. After the chaos of Anshi, Tubu recaptured Yucheng from the Tang Dynasty. Because the Cangshan Mountains around the city pool are green, it is named Qingtang City. [View] Greening is very good 👍! [Fun] Learn about history! [Cost-effective] Free!