Dusseldorf. Germany

Düsseldorf astounds visitors with its cutting-edge architecture, impressive nightlife and an art scene to rival even larger cities. It’s a modern city that seems all business at first : the finance, advertising, fashion and telecom industies have made Westphalia's capital one of the countrie's wealthiest cities. But after bar-hopping in the Altstadt, the old quarter on the Rhine, you'll realize locals love to let their hair down once the work is done.