Explore the 1600-year-old Cistern of Theodosius in Istanbul. Skip the ticket line and explore with the Audio Guide at your own pace, discovering its history and architecture.

Exploring the Cistern of Theodosius: A Hidden Gem of Istanbul
Beneath the busy streets of Istanbul lies the Cistern of Theodosius (also known as the Serefiye Cistern), an ancient structure that transports visitors back to a time of impressive engineering. Inside, tall columns and a serene atmosphere provide a glimpse into the city’s history and ingenuity.

From Byzantine to Ottoman Times
The Cistern of Theodosius, built during the reign of Emperor Theodosius II (408-450 AD) and later expanded by the Ottomans, was designed to store water for the city, especially during times of shortage or siege. Its grand columns and thoughtful design reflect the skill of the people who built it.

Impressive Architecture
The cistern spans an area of 24 by 40 metres with a ceiling height of 11 metres. It is supported by 32 columns made of Marmara Island marble. The walls are coated with watertight plaster to prevent leaks. The cistern’s thick walls and curved corners were designed to withstand pressure, and it features 45 sail vaults, blending both practical design and beauty.

A Rediscovered History
Named after Emperor Theodosius II, the cistern’s surrounding area has undergone many changes over time. The Arif Pasa Estate, built in the late 18th or early 19th century, once housed municipal offices. In 2010, the demolition of nearby buildings uncovered the cistern, leading to its restoration and the creation of an archaeological park around it.

Bringing History to Life with Technology
Today, the Cistern of Theodosius offers an interactive experience enhanced by modern technology. Visitors can explore the cistern’s history through three-dimensional projections, showing how the city’s water systems developed over time. The display also includes traditional Turkish tiles, adding cultural depth.

The final part of the projection tells the storey of the founding of the Turkish Republic, linking the cistern to the broader history of Istanbul.

A Glimpse into Istanbul’s Past
The Cistern of Theodosius is not just an ancient structure but a place where history meets modern technology. It offers visitors a chance to explore Istanbul’s rich heritage and see how the city has evolved over