Byzantine’s Underground Basilica and Theodosius Cisterns

Discover the hidden wonders of Istanbul’s ancient past with Skip the Ticket Line Access and a Self-Guided Audio Tour of two remarkable landmarks — the Basilica Cistern and the Theodosius Cistern. Explore both sites at your own pace and uncover centuries of history and impressive Byzantine engineering.

Descend into the mysterious Basilica Cistern, supported by 336 beautifully carved columns, and continue your journey at the lesser-known yet breathtaking Theodosius Cistern, believed to have been built during the reign of Emperor Theodosius II.

Don't miss the light show at the Theodosius Cistern.

Perfect for history lovers and independent travelers, this flexible, self-paced experience allows you to visit both attractions in one day or across multiple days.

Your entry tickets and audio guide links will be delivered to your email before your visit.

While you can skip the ticket lines, entry lines may still occur due to security protocols.