Zhaozhou Bridge, also known as Anji Bridge, is located in Zhaoxian County, Hebei Province, more than 40 kilometers away from Shijiazhuang City. It is a famous ancient stone bridge in China, known as "the first bridge in the world", with a span of 37 meters. It was built in the Sui Dynasty and has a history of 1400 years. It is also well preserved and can be called a miracle.