Stanbul (İstanbul tour - istanbuɫ), also known as Konstantinopol, and in Slavic sources such as Tsargrad - the largest city in Turkey, the main trade, industrial and cultural center, the main port of the country. Located on the banks of the Bosphorus Strait, which divides it into European (main) and Asian parts, connected by bridges and tunnels. According to the population, the first city in Europe (with the population living in both the actual European and Asian parts). The former capital of the Roman, Byzantine, Latin and Ottoman Empires.