The document provides information about top tourist attractions in the United Kingdom, including Big Ben, St. Paul's Cathedral, Westminster Abbey, Buckingham Palace, the Tower of London, the London Eye, and Tower Bridge. It gives brief descriptions of each attraction, highlighting what visitors can see and any entrance fees. It also includes a sample itinerary exploring Big Ben, Westminster Abbey, Buckingham Palace and the London Eye in one afternoon, with guidance on using London's public transportation and an estimated total cost.