Exploring the Cistern of Theodosius: A Hidden Gem of Istanbul
Beneath Istanbul’s busy streets lies the Cistern of Theodosius, an ancient structure offering a glimpse into the city’s history. Built during the reign of Emperor Theodosius II (408-450 AD) and later expanded by the Ottomans, it was designed to store water during shortages or sieges. The cistern features 32 columns made of Marmara Island marble and is supported by 45 sail vaults. Its thick walls and curved corners were built to withstand pressure.
Rediscovered in 2010, the cistern was restored and now offers an interactive 360 projection system. Visitors can explore its history through projections and learn about the city’s water systems. An audio guide is available to enhance the experience, and an entry ticket is required for access.
The Cistern of Theodosius blends ancient architecture with modern technology, offering a unique way to discover Istanbul’s rich heritage.
At the Cistern of Theodosius, visitors can explore a large underground area built in the Byzantine time. The cool, quiet space has tall columns and arches. It’s a peaceful place to walk around and see how people built it long ago. The cistern is a great spot to learn about Istanbul’s history.
You will make your own way to the meeting points
You will receive another email from Istanbul Tourist Pass to redeem your Entry Tickets + Audio Guide. Make sure to check your spam folder if you haven't receive it. Please ensure you are near the entrance of the Cistern of Theodosius before accessing your QR tickets. An internet connection is required on your smartphone to retrieve and display the QR code. Present your QR code at the entrance for scanning to gain access.