1. Istanbul :

2. Where is Istanbul ? Istanbul, historically known as Byzantium and Constantinople; it is the largest city in Turkey and 5 th largest city in the world with a population of 12.8 million, also making it the second largest metropolitan area in Europe by population, and the largest metropolitan city proper. Istanbul is also a megacity, as well as the cultural, economic, and financial centre of Turkey. The city covers 39 districts of the Istanbul provinced . It is located on the Bosphrous Strait and encompasses the natural harbour known as the Golden Horn, in the northwest of the country. It extends both on the European and on the Asian sides of the Bosphorus , and is thereby the only metropolis in the world that is situated on two continents. Istanbul is a designated alpha world city.And this provides by the backround bridge...

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