Time Out says
The Sultanahmet Mosque, better known as the Blue Mosque due to the prominent color of its majestic interior, was built in the early 17th century during the reign of Ahmed I and is among the city's most famous landmarks. Situated opposite the Hagia Sophia, the Blue Mosque is still a functional mosque and visiting is forbidden during prayer times.
At Meydanı Caddesi No: 7, Fatih
|Opening hours:||Open daily between 08:30-11:30, 13:00-14:30, 15:30-16:45. Open Friday after 13:30.|