Serbia is a country where centuries-old monasteries sit just a short drive from lively cities, and where the past is never far from daily life. In Belgrade, the capital, Kalemegdan Fortress offers panoramic views where the Danube meets the Sava River. This fortress has witnessed more than 100 battles and been rebuilt many times over two millennia. Within its walls are Roman ruins, an open-air military museum, and quiet park paths perfect for wandering between centuries of layered history.

Set on the Adriatic Sea, Zadar, Croatia, is a major Dalmatia historical center and a tourism magnet. Walk ancient streets, see Roman ruins and enjoy white-sand beaches.

Nearly 80% of the city was destroyed in WWII. It is now known for its many museums, including the Museum of Tapestry, the Brothers Grimm Museum and Fredericianum Museum.

Make friends with Rostock, one of Germany's most beautiful Hanseatic cities - where the Baltic Sea laps the shores of Mecklenburg/Western Pomerania and the air tastes slightly salty, where old-fashioned sailboats provoke nostalgic longings, and where brick gables reach into the sky.

There's plenty to explore in this vibrant Caribbean paradise. Visit one of the island's many beaches, including Bachelor's Beach, Te Amo Beach, and Sorobon Beach, take a stroll through the Bonaire Arts and Crafts Market, or visit Washington-Slagbaai National Park, where you'll likely catch a glimpse of many of the island's native birds and reptiles.