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!

Thingvellir, a captivating site in Iceland, seamlessly combines natural beauty and historical significance. Located in the Thingvellir National Park, this UNESCO World Heritage Site is a geological wonder where the North American and Eurasian tectonic plates meet. The dramatic landscape features rift valleys and stunning volcanic formations, making it a paradise for hikers and nature enthusiasts.

Evidence of our nation's birth abounds in Boston, a hub of revolution that is essentially the oldest city in the United States. Visitors are compelled to walk the 2.5-mile Freedom Trail around the city center, and bear witness to 16 historical locations related to the history of America.

Aalborg is the fourth largest city in Denmark and constitutes a natural center for the North Jutland region. In addition Aalborg is Denmark's largest conference center, outside Copenhagen. Aalborg has many cultural attractions which appeal to a wide variety of tastes; a varied night-life and more than 300 restaurants, bars and clubs.

Nazaré, set along Portugal’s wild Atlantic coast, is a fishing town transformed into one of the world’s most dramatic surf destinations. Its identity is deeply tied to the sea, both in its centuries-old maritime traditions and in the awe-inspiring waves that now draw visitors from around the globe.