Introduction to the gate tower of the Tomb of King Lu Jian: is the main gate of the Tomb of King Lu Jian. It is a single-story eaves and hilltop structure. It is 10 meters high and 21 meters wide. The walls are all made of bluestone. There are three arched door openings with nine belts and nine buckles. The entire building is made of bluestone arches. It is a large-scale beamless hall building. It is tall and majestic and is rare in Ming Dynasty architecture.