Shushtar Historical Hydraulic System

The Shushtar Historical Hydraulic System (Persian: سازه‌های آبی شوشتر) is a complex irrigation system of the island city Shushtar from the Sasanian era. It consists of 13 dams, bridges, canals and structures which work together as a hydraulic system.

Source: Wikipedia — Shushtar Historical Hydraulic System (CC BY-SA 4.0)