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ISTANBUL, Turkey

Population > 9.7 million

Leading indicator > Moody's recently upgraded its credit rating from speculative

Fast company > Dogan Holding

Thank the Oracle of Delphi for the stunning location. But thank global politics for a modern resurgence: Turkey's long-suffering EU bid has inspired serious reinvestment in infrastructure, including seismic retrofitting and a light-rail line. Plus, a vibrant nightlife, jazz and film festivals, and a growing design community.