Istanbul (Turkish: İstanbul) is the largest city in Turkey, constituting the country's economic, cultural, and historical heart. Istanbul is bordered by the Bosphorus strait and Sea of Marmara. Straight Bosphorus apart two continent Asia and Europe and Istanbul is just great city that is located at two continents in the World. Golden Horn natural harbor or bay is located in the city.

This metropolis has been chosen as the cultural capital of Europe in 2010. Also in terms of number of foreign tourists, is the world's third largest tourist town.