Introduction to the old city of Fengshan County: The old city of Fengshan County was built in the fifth year of Daoguang (1825). Since a new city of Fengshan County was later built on Bitou Street (today’s Fengshan City, Kaohsiung County), it is located on the left The site of the camp is called the "Old City". This city is not only the first earthen city in Taiwan, but also the first stone city. It can be said to be the ancestor of Taiwanese cities. In 1985, the east gate, south gate, north gate, city wall, city moat, Zhenfushe and Gongchenjing outside the north gate of the old city of Fengshan County were listed as first-class historic sites.