An ancient and legendary bridge - single bridge. Located in Xianxian County, Xianxian County, it set the world record for "the world's longest asymmetric stone arch bridge" in 2012. Built in Chonghui for two years, it is a five-hole stone arch bridge, a blue stone structure. At the ends of nine vaults, 18 faucets are carved, different animal patterns are carved on the railings and columns, and the local area has so far been celebrating the single bridge with "3,000 lions' 600 monkeys, 72nd unified dragon monument". This bridge is a key national cultural relics protection unit.