Huaguang Building, also known as the South Building and Zhenjiang Building, was built in the Tang Dynasty. The existing six-year reconstruction of Tongzhi in Qing Dynasty. It is a landmark building in Langzhong ancient city. Three eaves Xieshan roof, exquisite, simple and elegant, has the reputation of "the first floor of Langzhong". Up to the third floor, Danqing City Guo, gray tiles, slate alleys, winding paths. Red lanterns are hanging high and the water of Jialing River is murmuring. How can we not admire the scenery of Bashan and Shushui? The ancient city is really beautiful.