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.

An essential passageway between the Atlantic and Pacific Oceans, the Panama Canal is an extraordinary technological landmark and a testament to human innovation. Built in the early twentieth century by American engineers, the canal weaves through the Panamanian isthmus and allows easy access for commercial freighters and cruise ships alike.

Discover the charm and history of Krems, Austria, a city nestled along the picturesque Danube River and the gateway to the enchanting Wachau Valley. With origins dating back to Roman times, Krems is a treasure trove of historical and cultural wonders.

El Calafate, a small town in southern Patagonia, serves as the main gateway to one of Argentina’s most spectacular natural wonders, the Los Glaciares National Park. Sitting on the shores of Lake Argentino, El Calafate was once a quiet outpost known mainly for sheep farming and the hardy calafate berry. Today, it attracts travelers from around the world who come to witness massive ice formations and the shifting blue walls of nearby glaciers.

Bikini Atoll, a remote ring of islands in the Marshall Islands, is one of the most sought-after wreck diving locations in the world. These underwater sites are preserved in a time capsule-like state, providing a rare look at history submerged in a silent world of coral and marine life.