Step beneath Istanbul’s streets and enter the Basilica Cistern — an ancient underground marvel built to store the city’s water nearly 1,500 years ago.
This vast subterranean chamber, supported by 336 majestic marble columns, creates an otherworldly atmosphere that has fascinated travelers for centuries. Soft lights, echoing drips, and the eerie gaze of Medusa heads carved into hidden pillars make every visit unforgettable.
Once lost to time and rediscovered in the 16th century, the cistern now invites you to wander wooden pathways above shimmering waters filled with ghostly carp. A perfect escape from the city’s bustle, the Basilica Cistern blends history, architecture, and mystery into one hauntingly beautiful experience you can’t miss in Istanbul.
Come see why this hidden gem continues to captivate visitors from around the world.
Audioguide
Discover the mysterious depths of Istanbul at the Basilica Cistern, a breathtaking underground wonder built in the 6th century under Emperor Justinian I. Once the lifeline of the ancient city’s water supply, today it enchants visitors with its haunting columns, soft lighting, and legendary Medusa heads that guard its far corners. Wander along the raised wooden walkways as carp swim beneath your feet in the dimly lit, cathedral-like space. A masterpiece of Byzantine engineering, the cistern offers a cool, atmospheric escape from the bustling city above. Don’t miss the chance to explore this timeless subterranean palace and capture unforgettable photos in one of Istanbul’s most iconic, mystical landmarks. Perfect for history lovers, photographers, and anyone seeking a glimpse of Istanbul’s hidden secrets below the surface.
You will make your own way to the meeting points
We inform all our customers that the entrance tickets will be sent in the 24 hours before the selected date. Tickets will be sent both by email and to the telephone number provided at the time of booking. Depending on the seasonal periods selected, the entrance queue may vary.