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.

Known as the City of Spring, Kunming, the provincial capital of Yunnan, is blessed with a mild climate especially favourable to plant cultivation, which becomes instantly evident in the city's vibrant flower markets. The pace of life here is slow: hardly anyone is seen in a hurry. The best thing to do is smell the roses, and wind down gently while exploring this very pleasing city and the breathtaking nature getaways in the environs.

Cochin, also known as Kochi, is an Indian city in the state of Kerala that is widely renowned for its beauty and rich history. This city has long been a hub of international trade, with merchants from around the world coming to Cochin to exchange various products for aromatic spices, fine fabrics and shiny jewelry. The city's architecture is influenced by the Dutch, Portuguese, Chinese and Italian cultures, and it is filled with museums, temples, shops, restaurants, and other attractions to keep visitors entertained.

Just 250 kilometres north of the polar circle, the summer sun shines for almost two months without going down, while the polar nights offer the most intense Northern Lights that can be seen. In Kiruna, the northernmost city in Sweden, you can go slalom skiing until midsummer or spend the night in a magnificent hotel built from ice. The phrase "kingdom of contrasts" is overused, but Kiruna truly embodies it.