In the Bohai region of Yunnan, a Nanxun country was built in the Tang Dynasty. It was sealed by the Tang Dynasty and changed to Dali in the Song Dynasty. Dali Dali vigorously promotes Han culture, and there are many monuments left to date. The most famous is the three towers of Chongshou Temple in Dali. The three towers are located under Yingle Peak in Cangshan Mountain, one large and two small, standing tall. The middle tower is called Chisun Tower, built in the period of Quanfengxuan in Nanlu (823-859 AD), and it is said that it was built under the guidance of Tang architects Gongxuan and Huiyi. High 69． 13 meters, 16 floors, each floor is open in the front coupon shape, there is a white marble statue in the shape of a square dense brick tower, the shape is similar to the Xi'an small wild goose pagoda and Daiyue Temple pagoda, is a typical Tang Dynasty style. The two small towers are 42 ． 19 meters high, 10 floors, are octagonal solid brick towers. The tower was painted with a white mud skin and was built during the Dali period. After the tower, a large-scale Chongshou Temple was destroyed in the end of Qing Dynasty. Only three towers stood tall, becoming the oldest building in Yunnan.