Step into a hidden underground world beneath Istanbul.
It was built in 532 AD and is the largest ancient water reservoir in the city. Inside, you will see 336 tall columns, soft reflections on the water, and a dark, mysterious atmosphere. Walking here feels like entering a different world.
You can also see the famous Medusa heads, one of the most mysterious parts of the cistern.
A 1,500-year-old underground room with 336 columns, mysterious Medusa heads, and an atmosphere that feels closer to a cathedral than a tourist attraction.
01
1,500 Years of History
Explore a huge underground structure built by Emperor Justinian I. It once stored water for the entire city.
02
336 Ancient Columns
Walk through a forest of columns taken from ancient temples across the empire.
03
The Medusa Heads
See two large stone heads of Medusa. One is upside down, and one is sideways.
04
A Unique Atmosphere
The soft lights and water reflections create a calm and mysterious feeling.
One of the most unique underground places in Europe
A forest of columns, a mysterious head, and still-water reflections.
The Basilica Cistern is small enough to walk in 30 minutes — and dense enough to remember for years. Here's what to look for.
01
The 336 Columns
The cistern is supported by 336 large columns. You can spot different styles, including Corinthian, Doric, and Ionic capitals. Walking here feels like being in an underground forest.
02
The Medusa Heads
Located in the back corner, these two heads are the most famous part of the cistern. Their origin is still unknown, which makes them even more interesting. Many visitors combine the Basilica Cistern with Hagia Sophia and Topkapi Palace on the same day.
03
The Hen's Eye (Crying) Column
This column has patterns that look like tears. It is linked to the memory of workers who died during construction.
04
Light & Art Installations
New lighting and modern art create a unique atmosphere. The reflections on the water make it perfect for photos.
05
The Water Reflections
The still water creates beautiful reflections of the columns and lights. This makes the space feel calm and almost magical. It is one of the most photographed parts of the cistern.
06
The Walking Platforms
Visitors walk on raised platforms above the water. These paths guide you through the cistern and help you explore safely. The low light, water sounds, and wide space create a unique underground experience — quiet and peaceful, far from the busy streets above.
Open daily from 09:00 AM to 07:00 PM (Last entry at 06:30 PM).
Visit early or late
Visit early in the morning or after 5 PM. Midday can be very crowded.
T1 Tram → Sultanahmet station
Take the T1 Tram to Sultanahmet Station. The entrance is just 150 meters from Hagia Sophia. Topkapi Palace is also within easy walking distance from the cistern.
Phone photos OK, no tripods
Photos are allowed. Tripods are not allowed. Use night mode on your phone.
Wear comfortable, grippy shoes
Wear comfortable shoes. The ground can be wet and slippery.
Three nearby options
Tarihi Sultanahmet Köftecisi — Turkish meatballs · 200 m
Seven Hills Restaurant — best view · 400 m
Sultanahmet Fish House — seafood · 300 m
Explore beyond
Discover more landmarks nearby.
The Basilica Cistern is located in the heart of Istanbul's Old City. You can easily visit several iconic landmarks within walking distance.
Do I need a ticket to enter the Basilica Cistern in Istanbul?
Yes, a ticket is required for all visitors.
How much are tickets for 2026?
Prices start from €42. Check the latest prices online. Prices may change depending on the season. Booking online helps you secure your ticket in advance.
Can I skip the line?
Yes. Online tickets help you skip long ticket queues.
Is it cold inside?
Yes. It is usually around 15–18°C.
Is it dark inside?
Yes. The light is low to create a special atmosphere, but the path is clear.
Where are the Medusa heads?
They are at the back of the cistern. They are clearly marked along the walking path, so they are easy to find.
