Istanbul is Istanbul's most populous city, and its cultural and financial center. It is located on the Bosphorus strait, and encompasses the natural harbor known as the Golden Horn, in the northwest of the country. It extends both on the European (Thrace) and on the Asian (Anatolia) side of the Bosphorus, and is thereby the only metropolis in the world which is situated on two continents.
      Must See:  The European Side:Hagia Sophia (Aya Sofya), Sultanahmet Square, Topkapi Palace (Topkapi Sarayi), Bab-i Hümayün Caddesi, Sultanahmet Mosque (Sultanahmet Camii, aka Blue Mosque), Basilica Cistern (Yerebatan Sarnici). Yerebatan Cad., Sultanahmet, Hippodrome, adjacent to the Basilica Cistern, Blue Mosque and Hagia Sophia. Galata Whirling Dervish Hall (Galata Mevlevihanesi). Galipdede Caddesi, Ortakoy, The Museum of Archeology, Museum of Modern Art At Karakoy. Dolmabahce Palace See the Ottoman Palace centered close to Taksim at the Dolmabahce shore.Galata Tower ,Chora Church.
 

Airlines to fly to Istanbul : Delta, Lufthansa, United, Austrian Airlines, Alitalia, Aerosvit, Czech Airlines, Iberia, LOT, Malev, , Swiss International, British Airways, Turkish Airlines