London, England's Big Ben is one of the biggest bells ever made. Its melodic sound has rung in the capital city of London for more than 150 years. Big Ben hangs in the 316-foot Palace of Westminster with the Great Clock. The clock's gears move the hands on the clock's four faces. It also makes the quarter bells and Big Ben chime. Together, it is one of England's most popular tourist sites. Yet, Big Ben was almost never built. Fire, carelessness, and attacks nearly kept it a dream in some people's minds. Discover how this beloved British landmark was nearly lost several times and how determination and hard work brought it to life.