Introduction to the Imperial Stele Pavilion: There are two Imperial Stele Pavilions on the left and right sides of the front yard, which are called "Four Gate Stele Pavilions" in Tibetan. The stele pavilion is square in shape, 14 meters high, with thick walls on all sides, a Huan door, and a cross ridge with heavy eaves. In the stele pavilion, there are two imperial steles of Hongwu and Xuande of Ming Dynasty.