Guanyunfeng, one of the three treasures of Liuyuan, is the best of Taihu Stone. It gathers the four wonders of Taihu Stone "thin, wrinkled, leaky, penetrating" in one. It is legendary that this wonder stone is still a relic of the class Huashi in the late Song Dynasty. At the end of the Northern Song Dynasty, although the war in the North was tight and the Jin troops were under pressure, Huizong of the Song Dynasty built a large number of civil works in Tokyo City, building "Yanfu Palace", "Longevity Hill". He ordered a nationwide collection of exotic flowers and rocks, boasting that he would collect the world's treasures in the court. In the past four years, Huizong Yinning set up the Suzhou-Hangzhou Yingfeng Bureau in Suzhou, which was responsible for collecting famous flowers and rocks. Guanyunfeng is a relic of the class Flowers and Stones that can be transported in the future.