Introduction to Juyongguan City: The existing city wall of Juyongguan was built in the first year of Hongwu in the Ming Dynasty (AD 1368). The city wall reaches Cuiping Ridge in the east and the top of Jingai Mountain in the west. It has a circumference of more than 4,000 meters, with a circumference of more than 4,000 meters. The city, towers, watchtowers and other supporting facilities are complete. There are also government offices, temples, Confucianism and other related building facilities inside and outside Guancheng.