Rothenburg ob der Tauber
In the Middle Ages, when Berlin and Munich were just wide spots on the road, Rothenburg ob der Tauber was one of Germany's largest towns, thanks to its strategic position on the trade routes between northern and southern Europe. Today, it's the country's best-preserved medieval walled town, enjoying tremendous tourist popularity without losing its charm. While 2.5 million people visit each year, a mere 500,000 spend the night. Rothenburg is yours after dark, when the groups vacate and the town's floodlit cobbles wring some romance out of any travel partner.