Introduction to Taihu Stone: There are two most representative Taihu stones in Zhanyuan. One is the Immortal Peak, standing in the garden behind the south gate; the other is the Yiyun Peak, which is located on the southeast corner of the Flower Basket Hall. Among the flowers. Other strange stones include Diyun Peak, Yousong Stone, Step Stone, Blast Stone, etc. They are treasures of garden rocks in the south of the Yangtze River, and some of them are relics of Huizong of the Song Dynasty.