Zhaozhou Bridge: the arch that carries its road in the open
Li Chun's stone bridge over the Xiao River has stood since the Sui dynasty, its shallow arch held by twenty-eight curved ribs and pierced at both shoulders by small flood arches. The span is still walked across, and its repairs, its rediscovery in the 1930s and its place on China's tentative World Heritage list are part of the story.