In 1831, Charles Darwin sailed to South America aboard the H.M.S. Beagle. On the return voyage across the Pacific, the vessel stopped on a small group of islands far off the Ecuadorian coast, changing the course of human scientific endeavour and self-understanding forever. Fascinated by the unique wildlife on the islands, Darwin collected biological specimens and studied them over the next 30 years. His findings led to the formulation of the scientific theory of evolution by natural selection. This small group of islands and their one-of-a-kind wildlife are to thank for one of humanity's most remarkable discoveries. And today, almost 200 years later, they remain a source of endless fascination and a favourite travel destination for scientists, nature and wildlife enthusiasts, scuba divers, and anyone interested in the wonders of the natural world.

Houston, the fourth-largest city in the U.S., is known for its iconic NASA center, the world-renowned Texas Medical Center, and its lively annual rodeo. But in recent years, the city has evolved into a must-visit destination for the savvy traveler. With a vibrant mix of cultures—no one ethnicity holds the majority—Houston boasts an eclectic blend of top-notch cuisine, world-class culture, exciting entertainment, and unbeatable shopping.

Grenoble is the gateway to the Alps and a geographic crossing where the rivers Isère and Drac meet. With Switzerland to the north, Italy to the east, and Provence to the south, the city is surrounded by three mountain chains. It is a cosmopolitan city with cafés, museums, and restaurants. Best of all, you can see the Alps from almost every street corner.

The birthplace of the Ford Motor Company, Detroit received its nickname of "Motor City" thanks to its rise as the center of mass production of motor vehicles. The city has thrived despite its somewhat negative reputation in recent times, developing into a dynamic metropolis with heaps to offer visitors. Countless artists and singers have celebrated Motortown for its charm.

Known as one of the imperial cities of Morocco, the opulent city of Fès is the country's oldest city, and it is split into two areas – Fès-el-Bali (Old Fes) and Fès-el-Djedid (New Fes) – as some mystical fusion of an ancient Islamic past and the French-influenced present. The endless Medina, which contains 9,500 streets, sells everything from jewellery to furniture, crafts, carpets, leather goods and spices.