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.

Located in the North Rhine-Westphalia region of the country, modern Dortmund is vibrant and cultural, known for its good shopping, beer and football. But there is another, altogether gentler, side to this former industrial powerhouse. Dortmund has great theatres and cultural centres, a range of fascinating museums and, with half the city given over to parks and gardens, enough green areas to sooth the senses.

The site of former Indian, Portuguese and Dutch settlements, today’s Chennai was established by the British in the 17th century as a trading port. This colonial town, formerly known as Madras, has since grown into India’s fourth-largest city and the capital of the Indian state of Tamil Nadu. This bustling and colorful Indian city is bound to have something on offer for everyone.

For more than one billion of the world's population, Mecca is the holiest of sites, being the birthplace of Prophet Muhammad and the city of the revelation. Due to its religious importance, millions of pilgrims come here year after year from every corner of the planet, making it one of the most culturally and ethnically diverse cities in the Muslim world, a true melting pot of peoples and cultures.