Istanbul Hotel helps you to make your hotel bookings in Istanbul. There are several districts where hotels are located. Most of the Hotels are located in the Taksim area which is the business and city centre of Istanbul. The second centre of Istanbul is Sultanahmet, which is called the Blue Mosque. Where you can find the historic and charming hotels of the old city. Hotels are ... located at Istanbul Airport as well as throughout the rest of the city. Most of the historical ruins are located in the old part of the city, like the Blue Mosque, Hagia Sophia, Topkapi Palace, the Grand Bazaar, Basilica Cistern and the many museums of the old city.