Introduction to the Royal Bridge: There is Baima Erquan 200 meters north of Lingxing Gate, which is the source of the Baima River. There is a single-arch stone bridge in the middle, named "Yuqiao". The bridge is paved with bluestone, and the railings on both sides of the bridge are carved with stone lotus columns. The column heads are carved with the 24 solar terms, and the railings are decorated with open-carved aquarium patterns. The bridge is 8.5 meters wide and 16.2 meters long from north to south.