Gholhak or Qolhak (Persian: قلهک) is a neighborhood located in District 3 of Tehran Municipality. It is bounded on the east by the Darrous neighborhood (Fakourian Street), on the west by the Gholhak River, on the north by the British Embassy Garden, and on the south by the Pourmeshkani Street and Zafar Street (Dastgerdi).
The area has had several aqueducts since ancient times, some of which are still in use. The water of the current aqueduct in the embassy, which is very large and still flowing, irrigates the old sycamore trees in the area. In Gholhak area, there are two mosques called Jame Mosque and Gholhak Aazam Mosque. Its oldest mosque is the Aazam Mosque of Gholhak, where palm trees are brought out for mourning during the days of Tasua and Ashura. Also, the bathroom of the people of Gholhak, located in Jalali Street, next to the Shariati dead end, which was known as old Hafez Bath until several years ago, is currently closed. This bath is nearly a hundred years old and its construction date is unknown. Evidence shows that the aqueduct's water, which flowed into the pool from the British embassy and was burned in the oven by the leaves of trees and timber, heated the water and bathed the residents. Has been.[1]