Introduction to Tonggui Bridge: Tonggui Bridge is a single-hole arched ring-hole stone-level bridge across the Shantang River. It was built in the 13th year of Chongzhen in the Ming Dynasty by Wu Yipeng, the Minister of Rites of the Ming Dynasty. It is one of the representative works of Suzhou bridges. The bridge body is like a bright moon, and the bridge hole and the reflection in the water are perfectly round and complement each other. It is the best place to appreciate the style of Gusu Water Lane.