Dubrovnik, Croatia

Founded in the 7th century, Dubrovnik rose to greatness as a merchant state, independent republic and cultural crossroads. The traffic-free Old Town has been called a Croatian Athens. This UNESCO designated World Heritage Site is a living museum of the ages with fortifications, chapels, monastic cloisters and Europe's second-oldest synagogue crowded into its ancient walls. Relax at a sidewalk café, listen to the chimes of the 14th-century bell tower or join the promenade down the palace-lined avenue known as the Stradun.