Basilica Cistern (Yerebatan Sarnıcı)★★
Beneath the streets of Sultanahmet lies an underground palace: The Basilica Cistern, built in 532 AD under Emperor Justinian I, was the largest of over 60 ancient cisterns in Istanbul. 336 marble columns — each 9 meters high — support the ceiling over a water reservoir that once held 80,000 cubic meters of water.
The atmosphere is magical: dimmed light reflecting in the shallow water, classical music in the background, and at the far end two enigmatic Medusa heads as column bases — one upside down, one sideways. Why? No one knows for sure. The most common theory: they were simply the right size as a base.
After an extensive restoration (2017–2022) with modern LED lighting and new walkways, the visit is now more comfortable but also busier than before. The cistern served as a backdrop for the James Bond film "From Russia with Love" and Dan Brown's "Inferno".
💡 Tipp
Buy tickets online at muze.gov.tr — the queue at the entrance can take 30–60 minutes. It's quietest in the morning at 9 am or in the last hour before closing. Photographers: tripods are not allowed, but with high ISO and a steady hand, atmospheric shots can be achieved.