London is one of the most populous cities in Europe, with a city limits population of 7.5 million, an urban area population of 8.5 million and a metropolitan area population of between 12 and 14 million. Its population is very cosmopolitan, drawing from a wide range of peoples, cultures and religions, speaking over 300 different languages. London is an international transport hub, with five international airports and a large port. It serves as the largest aviation hub in the world, [2] and its main airport, Heathrow, carries more international passengers than any other airport in the world.
