Istanbul - the largest city in Turkey, the main commercial, industrial and cultural center, the main port of the country. It is located on the shores of the Bosporus Strait, dividing it into the European and Asian parts, connected by bridges and metro tunnels. By population, the first city in Europe. The former capital of the Roman, Byzantine, Latin, Ottoman empires. AT Istanbul There are two IKEA stores, one in the European, the second in the Asian part.