Hagia Sophia is builed in 6th century. Many art historians talk about its dome as the most beatiful in the world. At 1453 When ottoman gets Istanbul they start to use as a Mosquee.While you are flying you will have chance to see the beauty of the Hagia Sophia.
Beauty of the Hagia Sophia, Topkapı palace, Blue Mos quee will be waiting you.
Helicopter Tour Istanbul