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.

Can Tho is the largest city in Vietnam's Mekong Delta and an important commercial center in the region. It lies along the Hau River, one of the Mekong's major distributaries, and is surrounded by canals, rice fields, fruit orchards, and low-lying farmland. Waterways remain closely connected to daily life, with boats carrying people and goods between communities.

This cultural capital and university city holds more than 2,000 years of history and is the cultural hub of Germany. Marvel at the gorgeous twin-spired Cologne Cathedral, known for its gilded medieval reliquary and sweeping river views, or lose yourself in one of Colonge's many museums for a few hours. Cologne boasts of having most pubs per person in Germany, so make sure you sit down for a refreshing regional Kölsch beer during your travels!

Cut length wise by the Turkish/Greek border, the island of Cyprus leads two lives. The Turkish side is traditional and Islamic, while the Greek side is a very modern vacation destination.

This cliff-side town with it's iconic hanging houses is a true marvel! Walking the steep cobblestone streets surrounded by medieval architecture, you'll feel like you've stepped into a storybook.