Introduction to Shennong Hall: It is located on the east side of the central axis of Yandi Mausoleum, covering an area of ​​more than 20,000 square meters and a construction area of ​​1,413 square meters. It is a Qing-style antique building. The main hall is 37 meters wide, 24 meters deep, and 19.6 meters high. It consists of the main hall, the east and west side halls, connecting corridors and two square pavilions. On the outer corridor of the main hall are 10 high-relief dragon stone pillars, on which the dragons are lifelike. In the center of the main hall stands a stone statue of Emperor Yan, holding ears of grain in one hand and grass in the other. The three walls on the left, right and back are large-scale Guangdong red sandstone murals, praising the ten meritorious deeds of Emperor Yan.