Introduction to Longzhu: In order to commemorate Dun Gong, the founder of Fujian, the site was selected and rebuilt in Qianshangli, the sixth capital of Fujian and Qing Dynasties in the early 1940s. When leveling the land, I dug up a smooth boulder, egg yolk in color, located exactly in the center of the back hall, running in the same direction as the hall, and the straight lines coincided. Known as "Dragon Ball".