Qanat . Masterpiece Of Iranian Civilization

A qanat or kārīz is a system for transporting water from an aquifer or water well to the surface, through an underground aqueduct; the system originated approximately 3,000 years ago in Iran.[1] The function is essentially the same across the Middle East and North Africa (MENA), but the system operates under a variety of regional names: qanat or kārīz in Iran, karez in Afghanistan and Pakistan, foggara in Algeria, qanat in Malta, khettara in Morocco, falaj in Oman and the United Arab Emirates, and uyūn in Saudi Arabia, etc.[1] The largest extant and functional qanat systems are located in Afghanistan, Algeria, Iran, Oman, Pakistan, and the oases of the Turfan region in Xinjiang, Northwestern China.