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.

More than 26 miles of lakefront frame Chicago's stunning urban skyline. Here in the heart of the Midwest, the nation’s third-largest city boasts soaring skyscrapers and colorful neighborhoods against a backdrop of sandy beaches and beautiful parks. This cosmopolitan playground bursts with things to do. Sightseeing options range from Chicago icons — such as Millennium Park’s Cloud Gate, Grant Park’s Buckingham Fountain and Navy Pier’s Ferris wheel — to fascinating history and architecture tours.

As the birthplace of America, Philadelphia has endured centuries of hardship, obstacles, and triumphs, and remains a top tourist destination in the U.S. Historical buildings, sculptures, and murals line streets that were once walked by the Founding Fathers. While the weather fluctuates between mild springs, hot summers, and chilly winters, the people of Philly can always be seen out and about in the City of Brotherly Love.

With beautiful white sand beaches, excellent dining, and a plethora of outdoor pursuits, Floridian Naples truly has it all, and more awaits outside the city limits at the Everglades National Park downstate or – closer yet – the Ten Thousand Islands National Wildlife Refuge. Naples is also known for its first-rate golf courses and deluxe boutiques, both of which give the city a well-off, prosperous air.