London is the capital and largest city of England and the United Kingdom. It stands on the River Thames. London now has a population of about 9 million (2020). It is the third most populous city in Europe and accounts for 13.4% of the UK population.
London is one of the largest financial centres in the world. In 2012, London became the first city to host the modern Olympics three times. London is one of the leading tourist destinations in the world. Tourism is one of London's prime industries.
London’s landmarks include Buckingham Palace, the London Eye, St Paul's Cathedral, Tower Bridge, Trafalgar Square and The Shard.
London has numerous museums, galleries and libraries. These include the British Museum, Natural History Museum, Tate Modern, and Madame Tussauds.
The London Underground is the oldest underground railway network in the world. Heathrow Airport is the busiest airport in Europe by passenger traffic (2019).