Introduction to Wuyue Jiaotan: The ruins of Wuyue Jiaotan are located above Tianlong Temple and below Zilai Cave. Wuyue Jiaotan, also known as Jiaojiaotan and Dengyuntai, was built in the first year of Longde in Houliang (921). It was the place where King Qian Liu of Wuyue worshiped heaven. In the open space on the second floor is a large flat stone slightly smaller than a single bed, called Wu Meng Bed. It is said that it was used by hermits for practice.