London, the capital of England and the UK, is the world's ninth-largest city. Its history spans nearly 2,000 years, beginning with the arrival of the Romans soon after their invasion of Britain in AD43. London is situated on the banks of the river Thames, in southeast England.
London is made up of two ancient cities which are now joined together.
- the City of London, know simply as 'the City' which is the business and financial heart of the United Kingdom. It is also known as the Square Mile (2.59 sq km/1 sq mi). It was the original settlement (ancient Londinium).
- the City of Westminster, where Parliament and most of the government offices are located. Also Buckingham Palace, the official London residence of the Queen and the Royal family are located there too.
Together they all make up a region known as Greater London.