The Basilica Cistern, also know as the ‘Sunken Palace’ (Yerebetan Sarayi) was constructed by Justinian in 532 to supply water to the Byzantine Palace primarily. Basilica Cistern is a very authentic place and a must see in Istanbul. The cistern is located at Sulthanahmet Square.
Address: Yerebatan 13, Istanbul
Telephone number: (+90) 212 5221259
Opening hours: Daily 09.00 – 18.00