Bridge, the entity of engineering, is the material embodiment of science and culture.China's bridge culture is extensive and profound, enjoying a long history. Ancient bridges surviving from severe weather, natural disasters and wars are precious. They not only crystalize the connotation and features of Chinese traditional culture, the will and wisdom of the working people to transform nature, but also serve as a typical specimen of the level of social productivity in various historical periods. The most famous open-shouldered circular arc stone arch bridge in China is the Anji Bridge in Hebei Province, also known as Zhaozhou Bridge. Built in Sui Dynasty, it has a history of more than 1,400 years. Even now, a cross-sea bridge is a tough project. You can image how arduous a project it was in Song Dynasty. We admire and are proud of the wisdom of our ancestors to transform nature with natural things.