Guayaquil, Ecuador, is a vibrant port city and a frequent starting point for cruises to the Galapagos Islands.

Nouakchott, the capital of Mauritania, is a city that blends the desert’s quiet rhythms with the daily life of a growing urban center. Its coastal setting, unique cultural traditions, and access to the desert make Nouakchott both an introduction to Mauritania and a gateway to exploring the country further.

Besides being one of the largest and most remote of the Galapagos Islands, Fernandina Island is home to the area's most active volcano. It also boasts the most pristine ecosystem; unlike other islands in the Galapagos, Fernandina has thus far avoided the introduction of any non-native mammal species.

In Chile's arid Norte Grande, only one river in 700 miles of coastline makes it to the sea. Many towns have never experienced rainfall and depend on "Fogcatchers" to collect the morning dew for drinking water.

Sunshine, cars, celebrities... these are just a few of the things that define Los Angeles. But as any visitor to this expansive Southern California city will tell you, it's a place with seemingly infinite possibilities. There's downtown, with Crypto.com Arena, Walt Disney Concert Hall, and Olvera Street. There's Hollywood, with its Walk of Fame, maps to the stars' homes and palm-tree lined boulevards. There's Santa Monica, with its pier, shopping and ocean breezes.