Basilica Cistern
Istanbul, Turkey · Landmark
About Basilica Cistern
The Basilica Cistern is a magnificent subterranean water reservoir built in the sixth century during the reign of Byzantine Emperor Justinian I. Located right beneath the historic heart of Istanbul, it was designed to supply fresh water to the Great Palace and surrounding city. It is famous worldwide for its hauntingly atmospheric chamber supported by 336 ancient marble columns glowing under soft, artistic lighting.
Don't miss
- Marvel at the two mysterious ancient Medusa head column bases located in the far corner of the reservoir.
- Spot the ornate weeping Hen's Eye column, intricately carved with tears and branch patterns.
- Admire the contemporary art sculptures and dynamic LED light displays subtly integrated into the ancient hall.
- Walk the elevated paths to take in breathtaking reflections across the vast underground pool.
Plan your visit
Visit first thing in the morning or late in the afternoon to avoid the biggest crowds. It is also an ideal stop during midday in summer to enjoy a naturally cool underground retreat.
Admission is paid, and booking your ticket online in advance is strongly recommended to skip the long ticket queue. Note that separate ticket prices may apply for daytime and evening cultural sessions.
Take the T1 tram line to the Sultanahmet stop, which leaves you just a two-minute walk from the entrance. The cistern is also located directly across the street from the Hagia Sophia.
Tips for visiting
- Wear comfortable shoes with good traction, as the elevated walkways can occasionally be damp and slick.
- Bring a light sweater or jacket because the underground reservoir stays noticeably cooler than street level.
- Use a camera or phone with strong low-light capabilities, but leave tripods at home as they are not permitted.
- Watch out for the occasional harmless water drop falling from the vaulted brick ceiling overhead.
- Visit right after morning opening to experience the eerie silence before large tour groups arrive.
Basilica Cistern FAQ
Is the Basilica Cistern wheelchair accessible?
Yes, the recent renovation added an elevator at the entrance and step-free boardwalks throughout the cistern. This makes the attraction easily accessible for visitors using wheelchairs or pushing strollers.
Are tripods and flash photography allowed?
Handheld photography is allowed, but flash and tripods are generally prohibited to preserve the ambiance and maintain visitor flow. Modern smartphones and cameras handle the dim lighting quite well on night mode.
How deep is the water inside today?
The water level is currently kept very shallow, just a few inches deep, so visitors can safely view the foundations of the pillars. In Byzantine times, the cistern held up to 80,000 cubic meters of water.
Is there a dress code to enter the Basilica Cistern?
No, there is no special dress code required because the site is an ancient engineering structure rather than an active mosque. Normal casual travel clothing is completely acceptable.
More things to do in Istanbul
Hagia Sophia Landmark
Marvel at the soaring dome and intricate golden mosaics of this iconic monument spanning Byzantine and Ottoman eras.
Topkapi Palace Landmark
Wander through lush imperial courtyards, opulent pavilions, and the legendary Harem overlooking the Bosphorus.
Bosphorus Cruise Activity
Take a ferry or boat ride between Europe and Asia to see waterfront palaces, fortresses, and skyline minarets.
Grand Bazaar Shopping
Get delightfully lost in thousands of covered shops selling handwoven carpets, lamps, spices, and ceramics.
Blue Mosque Landmark
Admire the striking cascading domes, six slender minarets, and thousands of handmade blue Iznik tiles.
Galata Tower and Karakoy Neighborhood
Climb the historic stone tower for 360-degree city views, then explore Karakoy's trendy cafes and galleries.
Kadikoy Food Market Food
Hop on a ferry to the Asian side to sample fresh mezes, seafood, and authentic regional street dishes.
AI-written guide, last updated 2026-10-09. Check opening times and ticket prices on the official website before you go. Photos: narya, niekverlaan on Pixabay.