Cistern of Theodosius Entry Ticket & Audio Guide

Exploring the Cistern of Theodosius: A Hidden Gem of Istanbul Beneath Istanbul’s busy streets lies the Cistern of Theodosius, an ancient structure offering a glimpse into the city’s history. Built during the reign of Emperor Theodosius II (408-450 AD) and later expanded by the Ottomans, it was designed to store water during shortages or sieges. The cistern features 32 columns made of Marmara Island marble and is supported by 45 sail vaults. Its thick walls and curved corners were built to withstand pressure. The Cistern of Theodosius blends ancient architecture with modern technology, offering a unique way to discover Istanbul’s rich heritage.