A popular tourist destination in Mexico's Quintana Roo, Playa del Carmen is a coastal playground with plenty of nightlife, dining, and shopping.

London is among the world's most visited cities, with countless attractions and a history stretching back two millennia. Visitors will discover historic iconic structures like Westminster Abbey, Big Ben, and Tower Bridge, as well as recent marvels such as London Eye, a giant observation wheel that offers breathtaking views of the whole city.

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.

No place on Earth quite compares to Antarctica, this stunning and vast continent is cold and windy, containing 90% of the ice in the world. Those who brave a visit here are rewarded with beautiful glaciers that must be seen to be believed, and a vast array of wildlife such as whales, penguins, Arctic foxes and seals.

The Volga River is an emblematic waterway that meanders through the heart of Russia, offering an exceptional journey through the country’s rich cultural and historical tapestry. As Europe’s longest river, stretching approximately 3,530 kilometers (2,194 miles), the Volga flows from the Valdai Hills to the Caspian Sea, weaving through major cities such as Tver, Nizhny Novgorod, and Volgograd.