Basilica Cistern
Descend below the streets of Sultanahmet into this majestic underground reservoir which dates back to the 6th century. Also called the Sunken Palace, it is the largest cistern from Istanbul's Byzantine-era still standing, and something that James Bond fans might recognize from the film, 'From Russia with Love'. The underground chamber has over 336 distinctive marble and granite columns believed to have been salvaged from nearby buildings, the most famous being the two Medusa heads. Skip the lines and visit the Sunken Palace and other iconic sights like Hagia Sophia and Topkapi Palace on a tour of Istanbul.