The capital and largest city in Hungary, Budapest is a favorite European destination for millions of tourists each year. Once the center of the Austro-Hungarian Empire, this cosmopolitan city and UNESCO World Heritage site has plenty of historical and cultural landmarks to explore.

Barranquilla sits near the mouth of the Magdalena River on Columbia's Caribbean side. It is a major seaport and a center of commerce, but everyone breaks loose for four days in February for one of the liveliest carnivals outside of Rio.

One of the busiest ports in the Caribbean, Willemstad is the capital city of Curaçao. The city center, brimming with colorful Dutch colonial buildings that nearly touch the water's edge, has been designated a UNESCO World Heritage Site. Venture to this vibrant paradise lined with palm trees, and you'll discover plenty to see and do.

This cultural capital and university city holds more than 2,000 years of history and is the cultural hub of Germany.

A true destination, Alyeska is Alaska's biggest ski area. At the summit sits Mt. Alyeska Roundhouse, the state's only mountaintop museum.