Hundreds of Ancient Columns
The vast underground chamber is supported by hundreds of marble columns arranged in rows. Many architectural elements were reused from earlier Roman structures.
VIP4GO ISTANBUL HISTORY GUIDE
Basilica Cistern Istanbul
Discover Basilica Cistern in Istanbul — the remarkable Byzantine underground reservoir famous for its ancient marble columns, atmospheric architecture and mysterious Medusa heads.
6th Century
Byzantine Era
532 AD
Justinian I
Sultanahmet
Historic Location
Medusa
Ancient Sculptures
BASILICA CISTERN
The Hidden
The Hidden
World
Beneath Istanbul
Basilica Cistern is one of the most extraordinary historical attractions in Istanbul. Located beneath the streets of Sultanahmet, this enormous underground reservoir offers a fascinating glimpse into the engineering achievements of Byzantine Constantinople.
Built during the reign of Emperor Justinian I in the 6th century, the cistern was created to store water for the imperial city. Today, its rows of marble columns, vaulted ceilings and reflections in the water create a unique atmosphere unlike any other historical site in Istanbul.
Known in Turkish as Yerebatan Sarnıcı, the Basilica Cistern is located close to Hagia Sophia, the Blue Mosque and the Hippodrome, making it an essential stop on any Sultanahmet sightseeing route.
HISTORY OF BASILICA CISTERN
A Journey Through
A Journey Through
Byzantine Istanbul
Explore the history of one of Constantinople's most remarkable underground engineering achievements.
4th–5th Century
Early Water Systems
Constantinople developed an extensive network of aqueducts, reservoirs and cisterns to provide water for its growing population and imperial buildings.
532 AD
Emperor Justinian I
The Basilica Cistern was constructed during the reign of Byzantine Emperor Justinian I as part of the city's sophisticated water infrastructure.
Byzantine Era
Water for Constantinople
The underground reservoir helped provide stored water for the imperial capital, particularly during periods when the city's external water supply was insufficient.
Ottoman Era
Yerebatan Sarnıcı
Following the Ottoman conquest of Constantinople, the cistern continued to be associated with the city's water infrastructure and became known as Yerebatan Sarnıcı.
Modern Istanbul
A Historic Underground Landmark
Today, Basilica Cistern is one of Istanbul's most popular historical attractions, allowing visitors to experience the city's Byzantine heritage beneath the modern streets.
BASILICA CISTERN ARCHITECTURE
Inside the
Inside the
Sunken Palace
Discover the ancient columns, mysterious sculptures and engineering features that make Basilica Cistern one of Istanbul's most unique landmarks.
The Mysterious Medusa
Two monumental Medusa heads can be found beneath columns inside the cistern. One is positioned upside down while the other lies sideways.
An Underground Water System
The Basilica Cistern demonstrates the remarkable engineering skills of Byzantine builders and the importance of water storage in ancient Constantinople.
A Unique Underground Atmosphere
Dim lighting, water reflections and endless rows of columns create an atmospheric environment that makes Basilica Cistern one of Istanbul's most distinctive historical experiences.
WHY VISIT BASILICA CISTERN
Where Byzantine
Where Byzantine
Istanbul
Comes Alive
Basilica Cistern offers a completely different perspective on Istanbul's history. Visitors descend beneath Sultanahmet into a vast underground space created almost 1,500 years ago.
The combination of ancient marble columns, brick vaults, water reflections and the famous Medusa heads creates an unforgettable experience for visitors interested in Byzantine history and architecture.
Its central location also makes Basilica Cistern an ideal stop when exploring Istanbul's historic peninsula on foot.
VISITOR GUIDE
Plan Your
Plan Your
Basilica Cistern Visit
Explore the underground landmark and combine your visit with Istanbul's most famous historic attractions.
LOCATION
Sultanahmet
Basilica Cistern is located in Istanbul's historic Old City, close to Hagia Sophia and the Blue Mosque.
TIME
Allow 30–60 Minutes
Most visitors can explore the underground chamber comfortably within 30 to 60 minutes.
ROUTE
Explore Sultanahmet
Combine Basilica Cistern with Hagia Sophia, Blue Mosque, Hippodrome and Topkapi Palace.
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Start Your Istanbul
Journey in Comfort
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