Within the Old City there are at least half a dozen surviving medieval hammams, the underground bathhouses recognisable by their squat brick domes poking through the cobbles at street level. The Hajibani Hammam, the Aga Mikhail Hammam, and the Gasim Bey Hammam date from the seventeenth and eighteenth centuries; the Hajibani is still operating in renovated form.
Most are closed to walk-in tourists, but a few have been converted into restaurants or cultural spaces, and you can usually peer into the central domed rooms. For an actual bathing experience, the Tofig Bahramov public hammam outside the walls runs traditional ritual treatments with kissa scrubs and bowls of hot water.