Discover the mesmerizing Basilica Cistern, a historic underground structure that played a crucial role in Istanbul’s water supply system. Known as the “Sunken Palace,” this enigmatic building exudes an air of mystery. With its strange atmosphere, characterized by towering marble columns, the Basilica Cistern offers a striking glimpse into Istanbul’s past.

Situated at the heart of Istanbul’s legendary Sultanahmet neighborhood, close to iconic landmarks like the Blue Mosque and Hagia Sophia, lies the Basilica Cistern. Constructed during the reign of Justinian I, the Byzantine Emperor, this architectural marvel was completed in 527 AD.

Neighborhoods nearby required a reliable water storage system, leading to the construction of the Basilica Cistern. However, it fell into disuse and was forgotten after Ottoman rule until its rediscovery in the 16th century. Neglected until its restoration in the 1980s, it now stands as a witness to both technical ingenuity and Istanbul’s complex heritage.

When you enter the Basilica Cistern, it feels like stepping into another world. 336 marble columns, arranged in twelve rows with twenty-eight columns each, support the enormous subterranean hall, rising to an impressive height of nine meters. Low lighting throughout adds to the enchanting atmosphere that the soft trickle of water creates.

Two particularly famous columns feature intricately carved faces of Medusa at their bases. Perhaps for protection against evil spirits, one head appears upside down while another is tilted sideways.

Is the Basilica Cistern still used for storing water?

No, the cistern no longer serves its original purpose. Today, it stands as a popular tourist attraction and a unique venue for events like concerts.

What is the significance of the Medusa heads in the cistern?

The exact reason behind their presence is unknown. These heads are believed to be repurposed elements from a Roman structure, possibly serving as protective symbols against negative energies.

Are there fish in the cistern?

Yes, carp can often be found swimming in the waters of the cistern. Their presence helps control algae and insects naturally.
It is important to respect and preserve this historical site by refraining from touching any of its components or columns. Visitors are kindly requested not to throw anything into the water, including coins. Flash photography is not allowed as it may disturb other guests and harm this ancient structure.

Visiting Tips

  • To enjoy a more tranquil experience with fewer crowds, consider visiting during off-peak hours such as early morning or late afternoon. Opting for weekdays over weekends can help you avoid peak travel periods.
  • Plan to spend at least an hour exploring this unique environment fully and immersing yourself in its distinct atmosphere.
  • Photography without flash is permitted; therefore, it’s advisable to bring a camera suitable for low-light conditions.
  • Dress comfortably in breathable clothing as temperatures inside can become both steamy and cool.