Rio Dulce is a river region in eastern Guatemala that connects Lake Izabal to the Caribbean Sea. The area is centered around the town of Fronteras and the long waterway that cuts through tropical forest, limestone cliffs, and wetland habitats.

The National Park of American Samoa invites visitors to step into a world shaped by towering volcanic ridges, tangled rainforests, and clear coral-sand bays. Spread across Tutuila, Ta‘ū, and Ofu islands, the park protects nearly 13,500 acres of land and 4,000 acres of ocean, an unusual patchwork where ancient ecosystems like paleotropical rainforests meet hip-deep coral reefs. Only U.S. national park in the Southern Hemisphere, it’s a place where you can hike through cloud-shrouded forests and t

Dominica, known as the “Nature Island of the Caribbean,” is a haven for eco-tourists and adventure seekers. Nestled between the French islands of Guadeloupe and Martinique, this lush island boasts a remarkable landscape of volcanic mountains, dense rainforests, and stunning waterfalls. Dominica’s most iconic natural wonder is the Boiling Lake, the second-largest hot spring in the world.

Eger sits in northern Hungary and is known for its well preserved Baroque center, historic castle and long tradition of wine and craft that draw visitors from across Europe. Just beyond the historic center, generations of winemakers have perfected local styles and offer tastings of local varieties. A casual afternoon here can feel like a gentle cellar crawl, with seasonal music or simple snacks adding to relaxed tastings under vine covered walkways.

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.

The commercial and cultural center for the Ruhr region on the Rhine River, Duseldorff is also the site of the Felderhof Cave where Neanderthal man was found in 1856.