| Basilica Cistern | Cistern of Theodosius (Şerefiye) | |
|---|---|---|
| Location | Yerebatan Caddesi, opposite Hagia Sophia | Piyer Loti Street, near Çemberlitaş |
| Size | 336 columns 9 m high, about 80,000 m³ of water | 32 columns, hall of about 24 m by 40 m |
| Atmosphere | Lit forest of columns, reflections, Medusa heads | Intimate hall, glass walkway, 360-degree projection |
| Visit time | 30 to 45 minutes | 20 to 30 minutes |
| Foreign-visitor price | 1,950 TL by day, 3,000 TL in the evening (last published prices) | 900 TL |
| Hours | 9am-6:30pm, evening session 7:30pm-10pm | 10am-10pm (the official site also shows 10am-6pm) |
| Crowds | Heavy, especially midday | Light |
| Museum Pass | See our listing | Not accepted |
Prices and hours come from our listings for the Basilica Cistern and the Cistern of Theodosius, checked in October 2026. The Basilica has been run by the General Directorate of Foundations since June 2026 and has not yet published an official price list: check the price displayed.
Basilica Cistern: the big classic
Built in the 6th century under Justinian, it lies under Sultanahmet, right opposite Hagia Sophia. Its 336 columns rising from the water, the two Medusa heads at the back and the Column of Tears make it the cistern everyone has seen in photos. After the 2022 restoration, the lighting and contemporary artworks add to the effect. The downside: it is also the most expensive, and the queue grows around midday. Go at 9am. It is sold online with fast-track entry: the fast-track ticket with audio guide starts at €32.90 in our latest October 2026 check; verify it for your date.
Cistern of Theodosius: the quiet one
A reservoir about 1,600 years old, attributed to Theodosius II (408-450), hidden under Piyer Loti Street and rediscovered in 2010. It is smaller, but its 32 marble columns and 45 brick vaults are easy to see from the glass walkway, and the 360-degree projection onto the columns and vaults makes for a different kind of visit. There are few people: it suits the end of the day, when Sultanahmet empties. Two online offers exist: a skip-the-line entry ticket for the Theodosius Cistern and a ticket for the Theodosius Cistern with the Basilica Cistern as an option. Price, duration and contents: check them on the listing; the ticket is also sold on site.
Which cistern for you?
- First time in Istanbul, the photo of columns in the water: the Basilica.
- Tight budget: Theodosius, at 900 TL against 1,950 TL by day for the Basilica.
- Hate crowds: Theodosius, or the Basilica at 9am.
- Short on time: the Basilica, 30 to 45 minutes, combined with Hagia Sophia.
- Already seen the Basilica: Theodosius, for the projection and a calmer visit.
- Both: yes, in the same half-day; the Binbirdirek cistern is a third option in the same area.
Pitfalls to avoid
- Payment: the Cistern of Theodosius takes only bank card or Istanbulkart, no cash; bring a card to the Basilica too, whose payment rules should be confirmed on site.
- Theodosius hours: the official site gives two ranges (10am-10pm and 10am-6pm); confirm before going in the evening.
- Resellers: buy only at the official ticket office or from a platform; see scams and safety.
- Security: a fast-track ticket skips the ticket queue, not the security check.
- Wet floors: non-slip shoes in both cisterns; for the area, see our Sultanahmet guide.
Frequently asked questions
What is the difference between the Basilica Cistern and the Cistern of Theodosius? The Basilica is bigger (336 columns), better known and more crowded; Theodosius, smaller (32 columns), is quieter, cheaper and offers a projection show.
Which is cheaper? Theodosius: 900 TL for foreigners, against 1,950 TL by day for the Basilica (last published prices, October 2026).
How long does each take? 30 to 45 minutes for the Basilica, 20 to 30 for Theodosius.
Is the Museum Pass accepted at the Cistern of Theodosius? No.
Can you visit both on the same day? Yes, they are close and each visit is short.
The Istanbul Authority editorial team, October 2026.
