Introduction to Xiangui Bridge: Xiangui Bridge is the oldest existing single-hole stone arch bridge in Guangxi. The bridge is 25.8 meters long, 4.16 meters wide and 2.2 meters high. It adopts an extremely rare side-by-side construction method. Not only is the architectural structure unique, but the stone carvings on the inside of the bridge arch are valuable information for studying the Yulong River culture.