



Tickets can be cancelled up to 72 hours before the booking date. Rescheduling is available.
Step beneath the streets of Istanbul and explore the Cistern of Theodosius, an impressive 5th-century Byzantine water reservoir built during the reign of Emperor Theodosius II. Carefully restored in recent years, this underground structure features rows of marble columns, elegant arches, and vaulted ceilings that reflect the engineering brilliance of the Byzantine period. As you walk through the atmospheric space, a specially designed light and sound show illuminates the cistern, creating a visually engaging way to experience its history and architecture.
With the self-guided audio tour, you’ll learn about the cistern’s role in supplying water to ancient Constantinople, its rediscovery, and the restoration work that preserved it for modern visitors. The combination of historical narration, dramatic lighting, and underground ambiance makes this visit both educational and memorable, offering a quieter yet equally fascinating alternative to Istanbul’s more crowded landmarks.