The brick archway of the "Four Kingdoms Bao Gong" faces south and stands across the street. It is a masonry structure, mainly composed of bricks. The square is15m high, 9.2m wide and 3.3m deep, with an area of about 30m2. Its form is a palace style with high middle and low sides. The bottom-up structure of the workshop is as follows: the base is set at the bottom, across both sides of the street, and is made of giant square stones. Divided into upper, middle and lower layers, each layer is surrounded by exquisite relief, and the bottom is carved with lotus petals; There are carved clouds in the middle layer; The upper layer is carved with animals and scenery such as dragon colt, unicorn, scattered deer, abandoned lion, ganoderma lucidum and walking clouds. , gestures, lifelike. There are three arches above the pedestal, and a hole in the middle is very large, with a span of about 4 meters, and pedestrians can pass. The left and right holes are small, about two meters wide, symmetrical and harmonious. There are two dragons and pearls carved on each lintel, which are lifelike. Especially on both sides of the archway, eight stone lions carved on the stone platform are separated from each other, 4 males and 4 females, all of which are lifelike. The lion is pressing a rusty ball, looking back, and his majestic posture is bursting out; The lioness caressed her cubs and looked down at them, showing great maternal love. Above the big archway in the middle, there are two banners and stone tablets inlaid, and below is a memorial tablet engraved with the names, titles and gifts of four generations of Wang Zusun. On the plaque above Xu Gong's plaque, four big characters are engraved with four big characters, with correct fonts and vigorous brushwork. It is said that it was written by Dong Qichang, a great calligrapher in Ming Dynasty.