The "Blue" Mosque - Nicknamed for the cool hues of the tiles that decorate its interior, the Blue Mosque was Sultan Ahmet I’s 17th-century answer to Hagia Sophia. It is amazing inside:
Officially named for its patron, but nicknamed for the cool hues of the tiles that decorate its interior, the Blue Mosque was Sultan Ahmet I’s 17th-century answer to Hagia Sophia.
old town park:
1500 year old Mosiac in the Hagia Sofia:
Look at the detail: