This document provides information about sights to see on a round London sightseeing tour, including: The Tower of London, a historic fortress that now welcomes 2 million visitors annually to see the Crown Jewels and Beefeaters. Tower Bridge, a 1894 bridge that now allows visitors to learn about its history through interactive exhibits. The Houses of Parliament, also known as the Palace of Westminster, home to the elected House of Commons and House of Lords. Big Ben, the famous clock tower within the Houses of Parliament known for its 13.5 ton bell and world-renowned chimes. St. Paul's Cathedral, built by Christopher Wren to replace the previous cathedral