London is one of Europe’s most famous and visited cities and certainly the place to be! Located at the River Thames and capital of England and the United Kingdom London is a leading global city in terms of commerce, arts, fashion, research and development, media and tourism and is also one of the world’s leading financial centres. London has the world’s largest city airport system measured by passenger traffic and is a melting pot of cultures with over 300 languages spoken. Also London is a cultural and historical hotspot with four World Heritage Sites: the Tower of London; Kew Gardens; the site comprising the Palace of Westminster, Westminster Abbey, and St Margaret's Church; and the historic settlement of Greenwich. But there are also a lot of other things to discover like the Buckingham Palace, the London Eye, the Piccadilly Circus, the St Paul's Cathedral, the Tower Bridge and the Trafalgar Square. Besides, London is home to numerous museums and galleries including the British Museum, National Gallery and Tate Modern. To see everything in a short time avoiding traffic it is recommendable to use the London Underground, the oldest underground railway network in the world.