-What you can expect- Explore the striking Basilica Cistern during your visit to Istanbul. Journey beneath the earth's surface and admire the distinctive architecture while listening to an audio guide that will give you insights into the history of this place. Journey back in time and discover the ancient Byzantine Empire. Make your way down the stairs and discover the Basilica Cistern beneath the streets of Istanbul. Wander through the ancient structure and admire the architecture and ornamentation, including Medusa heads from Greek mythology. As you listen to the audio guide, learn more about the Basilica Cistern's fascinating history. Stay inside for as long as you want and take some great photos of one of the top attractions in Istanbul.