Perhaps the most famous city in Turkey and the surrounding regions, Istanbul has always been the heart of cultural and economical heritage. It was the capital of Byzantine Empire before it’s conquest by Ottoman Empire in 1453. Istanbul is home to many architectural wonder, with Hagia Sophia, Galata Tower, and the Blue Mosque. The province is the connection between Europe and Asia since the dawn of time. Silk Road merchants specifically stopped by Istanbul for its closeness to both continents. Nowadays, it is inhabited by 16 million people, with almost as much tourists as that!