Introduction to Sanling Terrace: Located outside the north wall of the ancient city of the Song Dynasty, it is a high platform composed of three approximately circular mounds arranged side by side from east to west. It is the tomb of three monarchs of the Song Dynasty in the Zhou Dynasty. King Liang Xiao of the Western Han Dynasty built three hundred Liliang Garden once had a lot of construction work on Sanling Terrace, and it became a scene in Liang Garden.