Huaguang Building is located in the ancient city of Langzhong, a building in the ancient city, across the south of Dadong Street, between the upper and lower Hua Street. It was built in Tang Dynasty, and it was built in the existing pavilion in Langzhong. It was the earliest and most magnificent building, so it is called the "first floor of the Langyuan". It is a street gate building, triple glazed, Xishan-style helmet-like roof, green glazed tiles, and ridge decoration is quite complicated. At night, red, green and blue colors alternately flash, beautiful. one