Where is the Yerebatan Sarnıcı?

The Underground Palace is one of Istanbul’s oldest structures. Located in the Historic Peninsula, right next to Hagia Sophia, in the Sultanahmet district, it appears from the outside as an ordinary building—but upon entering, you step into an entirely different world! This structure lies beneath the ground, which is why it is called “Yerebatan.”

The History of the Yerebatan Sarnıcı

The Yerebatan Sarnıcı was constructed in the 6th century by the Byzantine Emperor Justinian I. At that time, it served as an underground water reservoir to meet the city’s water needs. Rainwater was channeled here via aqueducts, and later used by the city’s population.

(Generated by artificial intelligence.)

The reservoir is supported by exactly 336 columns. These columns are so tall and imposing that the interior resembles an underground palace!

💧 The word “sarnıç” means an underground water reservoir.

Time Travel:

📜 Who Were the Byzantines?

The Byzantines were the people who lived in the eastern part of the Roman Empire. Istanbul’s former name was Constantinople. The Yerebatan Sarnıcı was one of the great engineering marvels of that era!

The Yerebatan Sarnıcı Today

Today, the Yerebatan Sarnıcı is one of Istanbul’s most fascinating museums. Inside, you will find wooden walkways, illuminated colossal columns, fish floating in the water, and mysterious Medusa heads. The dim lighting and the sound of water transform the space into something like a fairy tale.

Visitors who explore the site learn about history while discovering a mysterious world filled with water.

Why Visit the Yerebatan Sarnıcı?

🌊 To Explore an Underground Palace Filled with Water:

Walking between the columns feels like wandering through a secret kingdom.

👁 To See the Mysterious Medusa Heads:

Some Medusa heads are placed upside down or sideways at the bases of certain columns. These are linked to ancient myths.

📚 To Learn History in Its Original Setting:

Interesting facts about the Byzantine period are presented on informational panels.

🎨 To Attend Art Events:

Light shows, concerts, and children’s activities are occasionally held here.

(Generated by artificial intelligence.)

What Can You Do at the Yerebatan Sarnıcı?

🚶 Take a Walk Through the Reservoir:

Walk along the pathways, examine each column, and spot the Medusa heads.

🔦 Play with Shadows:

The way dim light reflects off the columns is enchanting. Use your imagination to write your own fairy tale!

🎣 Observe the Fish:

Watching the fish slowly swim through the water is a delightful experience.

📸 Take Photos:

Photos taken inside the reservoir are striking. Do not forget to capture the dance of light, water, and stone!

References

“Yerebatan Sarnıcı.” Istanbul Metropolitan Municipality Official Website. Accessed 19 June 2025. https://istanbul.gov.tr/yerebatan-sarnici

“The Palace Beneath the Waters: Yerebatan Sarnıcı.” Culture Portal. Accessed 19 June 2025. https://kulturportali.gov.tr/yerler/yerebatan

Topaloğlu, Emine. “Byzantine Water Architecture and the Yerebatan Sarnıcı.” Tarih ve Medeniyet Dergisi.