Basilica Cistern
- Where
- Yerebatan Cad., Alemdar Mah. No:1/3, 34410 Sultanahmet, Fatih, İstanbul, Istanbul
- Hours
- Daily 09:00–22:00
Ancient underground cistern just southwest of Hagia Sophia in Sultanahmet, open every day of the week.
Checked 4 NovOfficial website