Zhenning Fort stands on the Wangxianpo Slope of People’s Park. It was built by Lu Rongting, in 1917. The fort is a castle-like building made of limestone and sandstone, 39m in diameter and over 120m in perimeter, covering an area of over 860 k㎡. The castle has two gates, south gate and north gate, with Zhenning Fort in the middle. The fort itself is 4.9m high, 13.4m in diameter and 42m in circumference. The emplacement of the fort is 5.6m in diameter, and 17.5m in circumference. Made by the Krupp family in the 20thcentury, the fort is a 122mm-bore rifled gun with the aid of rails and its firing directions include east, south and west. After 1949, Wangxianpo Slope was developed into a park and the repaired fort became a best place for people to visit or have a birdview of the city center.