Qin dynasty architecture

The Dujiangyan () is an ancient hydraulic engineering system in Dujiangyan City, Sichuan, China. Originally constructed around 256 BC by the State of Qin as an irrigation and flood control project, it is still in use today. The system's infrastructure develops on the Min River (Minjiang), one of the longest tributary of the Yangtze. The area is in the west part of the Chengdu Plain, between the Sichuan Basin and the Tibetan Plateau.

The Lingqu () is a canal in Xing'an County, near Guilin, in the northwestern corner of Guangxi, China.

canal