"If the world was a single country, the capital would be Istanbul." It is undoubtedly the role of Istanbul in history, which makes Napoleon singing this word. Istanbul is a world city. It is a picture that gives the colors of civilizations that bearing the traces left for humanity for centuries. Istanbul became the capital of the three great empire in history: Eastern Rome, Byzantine and Ottoman. It is a worldwide city with its geographical location, natural beauties, historical, cultural and architectural richness. The city, which is famous for its Bosphorus, is a bridge that connects the continents of Asia and Europe. The historical structures of the traces of different civilizations include Hagia Sophia, Sultanahmet Mosque, Topkapi Palace, Suleymaniye Mosque, Yerebatan Cistern, Galata Tower, Dolmabahçe Palace, Rumeli Fortress, Anatolian Hisari and Maiden's Tower. The city is located at the intersection of the Bosphorus, the Sea of ​​Marmara and the Black Sea; It is a popular tourism destination that attracts many tourists worldwide with its historical, cultural, natural beauties and rich culture.