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.

The city of Plovdiv is the second largest city in Bulgaria and one of the best-preferred travel destinations, not only because of its huge cultural and archaeological heritage, but also due to its central location, offering a variety of tourist attractions and activities. Due to the diverse opprotunities for tourism, the city has been listed in a number of prestigious ranks, among which European Best Destinations 2016. In 2019 Plovdiv will be European Capital of Culture.

Think big in Washington–as soon as you arrive in D.C., you’ll be knocked over by the scale of the place. America's capital wants you to know where you are, and the city goes all out to impress in terms of grandeur and size. Drama and scandal bubble under the surface, while the streets are abuzz with hip and happening events, museums, restaurants, and clubs around every corner. The principles of Equality, Justice, Life, and Liberty are still upheld, but D.C. is, above all, a trendy and international town.