An important settlement for around two millennia, London is today one of the world's leading business, financial and cultural centers, and its influence in politics, education, entertainment, media, fashion and the arts all contribute to its status as one of the major global cities, along with Paris, New York and Tokyo.
London is a major tourist destination, with four world heritage sites and numerous iconic landmarks such as the Houses of Parliament, Tower Bridge, the Tower of London, Westminster Abbey, Buckingham Palace and the London Eye among its many attractions, along with famous institutions such as the British Museum and the National Gallery. (extract from Wikipedia)