Big Ben's distinctive bongs have been a part of the London scene for 150 years.
Big Ben is the 14-ton bell inside the world's largest four-faced chiming clock, although most people use the name to describe the tower that houses it.
The clock is perched on a 96-meter (310-foot) elegant tower at the Westminster Bridge end of the Palace of Westminster.
The Victorian masterpiece, which provides distinctive chimes known as bongs, was voted Britain's favorite monument in 2008. It has been featured in films such as "101 Dalmatians" and "Harry Potter and the Order of The Phoenix."
