London is the capital city of England and the United Kingdom. It is a major tourist destination known for iconic landmarks like Big Ben, Tower Bridge, Buckingham Palace, and the London Eye. Tower Bridge is a combined bascule and suspension bridge over the River Thames that has become a iconic symbol of London. The London Eye is a giant Ferris wheel situated on the River Thames that was once the tallest Ferris wheel in the world. Buckingham Palace in London is the official residence of the British monarch and a setting for state occasions and royal hospitality.