Introduction to Wuyun Tower: On the steep cliff northwest of the palace, Wuyun Tower (also called Wujian Tower) seems to be hanging on the mountainside. It is extremely steep. There is a couplet written by Li Baoshu of Dayao: "The clouds are gone and the moon is coming to the mountain. Self-conscious; the pines hanging on the rock are like flying. "The Wuyun Tower is really like a fairyland."