Introduction to Dou Wan's Tomb: Dou Wan's Tomb, in terms of the construction of the tomb, its huge scale, grandeur and neat excavation all exceed the level of Liu Sheng's tomb. The floor plan is similar, with a total length of 49.7 meters, the widest point of 65 meters, and the highest point of 7.9 meters. The volume reaches 3000 cubic meters.