In Shouxian County. Slightly square, with an area of 3.65 square kilometers. According to historical records and local chronicles, in the Five Dynasties, Chai Rong, Zhou Shizong and Nantang fought for Shouzhou, while Liu Renze, commander-in-chief of Nantang, relied on Gucheng to "hold on", and it took Chai Rong more than a year to break through the city. Chai Rong "moved to Cai Xia because of its difficulties". Guo Cheng, the Chronicle of Shouzhou in Qing Dynasty, recorded: "During the reign of Cai, the old city was largely destroyed and rebuilt in this city or Xining, while in Jiading, many cities were rebuilt. The thirteen miles around are strange, 20 feet high and 20 feet wide. It is located in the southeast of the city, more than 20 feet wide, with water in the north and West Lake in the west. " Both the reconstruction of Xining in the Northern Song Dynasty and Jiading in the Southern Song Dynasty have a long history. According to rough statistics, there were125th floods from the 3rd year of Three Kingdoms Ganlu (258 years) to the 15th year of Guangxu in Qing Dynasty (1889 years). Due to the destruction of war and flood, the city wall has been repaired many times, leaving traces of restoration in previous dynasties. According to the actual measurement, the circumference of the city is 7 147 meters, the wall is 8.33 meters high and the top width is 6.66 meters. The wall is rammed with clay, and the outer wall is built with stone foundation and blue bricks. Tung oil, glutinous rice juice and lime are used as slurry for masonry gaps. The wall divides inward layer by layer. There are four gates, namely Binyang in the east, Tong Fei in the south, Dinghu in the west and Jinghuai in the north. Each door is connected to the castle by a ladder. The city walls are magnificent. It is a provincial key cultural relics protection unit.

Waibao

There are four gates in Shouxian County, and there is an urn outside each gate, also known as the Moon City, where soldiers are stationed. The so-called Wengcheng is said to mean "catching turtles in a jar". From the name, it is known that it was set up for the needs of military defense. The entrance and the city wall of the urn are all made of bricks and stones, and their height and thickness are basically equal to those of the city gate and the city wall. South Gate and Wengcheng are on a central axis; The north gate urn faces west, and the west gate urn faces north, all at 90 degrees right angles to the gate. The urn at the east gate is parallel to the gate and staggered. Every urn and gate has a huge wooden door with protective iron outside, and there are strips and grooves on both sides of the door, which are still there today. There are two hidden soldier caves in the south gate and the west gate. Wengcheng and the city wall formed a strict defense engineering system, which played an important role in ancient times. 1939, when the Japanese invaders attacked Shouxian with modern weapons, they failed to succeed easily. It was not until the soldiers guarding the city gave up all their ammunition and the head of the team, Zhao Dayuan, died heroically that they fell into the hands of the enemy.

Binyang building

There are four gates in the ancient city of Shouxian, and each gate has a tower. Due to disrepair or war, the tower has disappeared. 1April, 986, the relevant departments decided to repair the East Gate Tower first, which was drawn by Suzhou Classical Garden Design Office with reference to the Song Dynasty design. Construction started at the end of September in the same year and was completed in April. 1987. The east gate was originally named "Binyang", so it follows the old name "Binyang Building". The building is a brick-wood structure, with 3 rooms wide, double eaves resting on the top of the mountain, cornices upturned, tile roof, animal ridge, small square wooden door, two steps of east and west doors, and cloisters around it. Simple and elegant, integrated with the style of the ancient city.