London, England, is the capital city of the United Kingdom and one of the most populous cities in Europe. It is known for its rich history, diverse culture, and iconic landmarks such as the Tower of London, Buckingham Palace, and the British Museum. The city is a major financial center and attracts millions of tourists each year. The River Thames flows through London, providing scenic views and transportation options. London is also famous for its public transport system, including the London Underground, commonly known as the "Tube." The city is home to various parks, theaters, and educational institutions, making it a vibrant place to live and visit.