The historic mosque was built in 1566 during the rule of the Ottoman Empire. It was designed by the famous architect of the time, Mimar Sinan. It is currently the only still functioning mosque in Sofia. It is not officially open to tourists, but can be visited outside of prayer times. Appropriate attire and hat are required.
The mosque was built on a rectangular plan. It is crowned with a huge central dome with a diameter of 15 m and a high minaret. The walls are built of rows of hewn stones interspersed with rows of red brick.
The name of the mosque means "many baths". It refers to the place where the temple was built, which stands on natural thermal baths. Rising water vapor can still be seen from vents in the ground near the walls of the building. It was probably originally a bathing mosque.