"Rostam Giv Ab Anbar: A Masterpiece of Persian Water Architecture.

The Rostam Giv Ab Anbar, also known as the Rostam Giv water reservoir, is located in the historic city of Yazd in central Iran. Commissioned in 1940–1941 by the philanthropist Rostam Giv, this ab anbar (water cistern) was built to supply clean water to the arid urban environment of Yazd, where preserved underground structures were essential due to the region’s extreme dryness.

This striking structure features a large underground cylindrical cistern covered by a dome and ventilated by four tall windcatchers (badgirs). These towers draw in cooler air and expel warmer air, naturally cooling and aerating the water. The brick dome and walls act as insulation, preventing evaporation and contamination —an ingenious design refined over centuries of Persian engineering.

Beyond its functional role, the ab anbar symbolizes the civic generosity of Rostam Giv, one of Yazd’s Zoroastrian leaders and philanthropists. His foundation financed schools, fire temples, and other public works. The reservoir’s careful preservation and listing as a national heritage site in 1996 underscore its importance as a modern homage to ancient traditions.

Today, the Rostam Giv Ab Anbar stands as a well-preserved cultural monument, open to visitors and admired for its architectural elegance and historical significance."

Lefteris Stamatelatos

"The Shesh Badgir Reservoir dates back to the contemporary period and is located in Yazd, Shesh Badgir neighborhood, Shesh Badgir Alley. This work was registered on April 24, 1978, with registration number 1600, as one of the national works of Iran."

Ali Parvizi

"The reservoir of six winds has two entrances, one from the north and the other from the south, and the reservoir is located at the southern entrance. The tank in the reservoir has a capacity of 2000 cubic meters of water and in this respect it is considered as one of the medium reservoirs.
The entrance to the water reservoir is located in the southern part, where you can reach the reservoir by walking 55 steps. Pashir is a place where water was taken out for use. Pashir is today's faucet.
Of course, the point mentioned in some sources is the existence of two pashirs, which may not be true, the point is that these two pashirs were for the use of two classes, one lion for the Muslims of Yazd and the next lion for the Zoroastrians of Yazd.
Of course, other sources also made another claim that because the number of people in this place was large and crowding caused a lot of crowding, they installed two taps to prevent this crowding.
The reservoir of six windbreaks has an egg dome and has 6 windbreaks, each of these windbreaks is 10 meters high, and the depth of the reservoir itself is 12.6 meters.
Reservoirs often have 4 important elements, including the dome, pashir, khazine and wind girder, each of which has a specific task.
Dome: It was built in order to prevent dust or garbage from entering the tank to pollute the water.
Pashir: The stairwell is so that people can empty the water they need.
Wind deflector: It was made to keep the air inside the water tank and treasury cool.
and
Treasury: It is also dug in the ground to collect rainwater and store it."

Saeed Rasooli