Istanbul, TurkeyYear Founded: 660 BCEPopulation: 8,803,468Cool Fact: The largest city in Turkey, it has also been known as 'Byzantium' and 'Constantinople' in the pastPicture: The Topkapi palace in Istanbul, which was the official residence of the Ottoman Sultans for approximately 400 years (1465-1856) of their 624-year reignBack to the World! |