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.

Formerly known as Madras, Chennai has a history involving Indian, Portuguese, and Dutch settlements before becoming a significant British trading port in the 17th century. As time progressed, Chennai has grown significantly. It is now India’s fourth-largest city by population and serves as the capital of the Indian state of Tamil Nadu. From historical landmarks and temples to modern amenities and lively markets, this bustling and colourful Indian city is bound to have something on offer for everyone.

Cluj-Napoca, often referred to as the unofficial capital of Transylvania, is a vibrant and lively city with a rich cultural history. Despite its ominous administrative status, the city is far from grim and has a well-deserved reputation as a party town. Named the European Youth Capital in 2015, Cluj-Napoca is home to an estimated 100,000 students, who make up about a fifth of the population. This youthful energy, combined with the city's cultural renaissance, makes Cluj-Napoca a must-visit destination for anyone interested in experiencing the vibrant arts and entertainment scene.

With a skyline dominated by the imposing Špilberk Castle and the soaring twin spires of the Peter and Paul Cathedral, Brno has an attractive and historic city centre. The name, Brno, might sound like a crossword anagram, but the Czech Republic's second-largest city and capital of Moravia is a vibrant, yet traditional place. Brno boasts stunning architecture, great museums, a crypt, a gorgeous lake–just a tram ride away–and an exciting, beer-filled bar scene without heaving crowds.

As a metropolitan city of amazing proportions, Dallas is the primary destination for travel and excitement in Texas. Drawing those with an innovative spirit, Dallas possesses an uncanny ability to combine Southern charm with commercial finesse. Its citizens have christened the city “Big D” in a fitting manner, for much like the state in which it resides, Dallas boasts of big style, from the endless entertainment and dining districts of its downtown, to sporting attractions spanning five professional teams.