Kish has a long history and was explored by Alexander the Great's navy while its pearls were mentioned by Marco Polo in China. Of Kish's historical sights, the most impressive is
Kariz-e-Kish, which is over 2,500 years old. A vast underground qanat or aqueduct to move water, the system of tunnels resembles an subterranean city. The water was filtered three times using coral and clay with the best water used for drinking and the rest in agriculture.