Hagia Sophia - Was a Greek orthodox Christian Patriarchal basilica (church), later an imperial mosque, and how a museum (Ayasofya Müzesi) in Istanbul, Turkey.
Insider Istanbul: Where to Eat, Sleep, and Explore
Turkey Travel Inspiration - Insider Istanbul: Where to Eat, Sleep, and Explore - Condé Nast Traveler - Galata Tower
Blue Mosque or The Sultan Ahmed Mosque is an historic mosque in Istanbul. The mosque is popularly known as the Blue Mosque for the blue tiles adorning the walls of its interior. It was built during the rule of Ahmed I.
The Blue Mosque in Istanbul - Turkey *Lol, this is not the Blue Mosque. It's Sabanci Merkez Camii in Adana - Turkey.
Underground cistern Istanbul-Turkey Basilica Cistern September 2014 The pillars were taken from other sites so are not all the same
The Topkapi -İstanbul Palace on Sarayburnu or Seraglio Point with a ferry and the banks of the Golden Horn in the foreground, Istanbul Turkey.