Marathon, located near the center of the Florida Keys, is a vibrant island city known for its fishing, boating, and tropical charm. Nestled between Key Largo and Big Pine Key, Marathon is surrounded by clear waters, coral reefs, and sandy beaches, making it a prime destination for water-based recreation.

Dry Tortugas National Park is a remote island and marine park in the Florida Keys, located nearly 70 miles west of Key West. The park consists of seven small islands surrounded by shallow waters, coral reefs, seagrass beds, and open ocean. More than 99 percent of the park is water, making its marine environment as important as its land area. Garden Key is the main visitor destination and contains historic Fort Jefferson, while Loggerhead Key, the largest island, is known for its lighthouse and p

Coursing through 10 countries, the Danube is the second-longest river in Europe. This waterway, lined with fortresses and castles, rises in Germany's Black Forest and runs for 1,770 miles to the Black Sea. The Danube is an essential commercial thoroughfare for central and southeastern Europe, and several river cruise companies sail vessels on it year-round. Destinations along this river include Vienna, Budapest, Passau and Bratislava.

Yellowstone National Park, America's first national park, stands as a stunning testament to nature’s raw power and beauty. Located primarily in Wyoming, with portions extending into Montana and Idaho, Yellowstone offers visitors a chance to witness incredible geothermal wonders, such as the famous Old Faithful geyser that faithfully erupts every 60 to 110 minutes.

The Port of Stavanger is a popular stop on the route to the Norwegian Fjords, and boasts a first-rate assortment of museums and cultural events. Old Stavanger has Europe’s best preserved wooden house settlement.