Central and North America, from the tropical Caribbean to the Arctic waters of Greenland, 23 countries, covering 24.7 million square kilometres and a population of over 529 million people. Central America connects South America with North America and combines both cultures with bustling cities, ancient ruins, jungles, white sandy tropical islands and Spanish-tinged Afro-Indian cultures. The USA is one of the largest, most ethnically diverse nations on Earth and is packed with world famous cities and fantastic natural parks. Canada has huge areas of unspoiled wilderness, and some of the world's most modern, cosmopolitan cities. Travellers... go.