Istanbul is a major city in Turkey that straddles Europe and Asia across the Bosphorus Strait. Its Old City reflects cultural influences of the many empires that once ruled here. In the Sultanahmet district, the open-air, Roman-era Hippodrome was for centuries the site of chariot races, and Egyptian obelisks also remain. The iconic Byzantine Hagia Sophia features a soaring 6th-century dome and rare Christian mosaics. This magical meeting place of East and West has more top-drawer attractions than it has minarets (and that's a lot). Istanbul's strategic location has attracted many marauding armies over the centuries. The Greeks, Romans and Venetians took turns ruling before the Ottomans stormed into town and decided to stay – physical reminders of their various tenures are found across the city. The fact that the city straddles two continents wasn't its only drawcard – it was the final stage on the legendary Silk Road linking Asia with Europe, and many merchants who came here liked it so much that they, too, decided to stay. In so doing, they gave the city a cultural diversity that it retains to this day.