Big Ben, the iconic clock tower in London, is famous for its massive bell and impressive accuracy. Originally known as St. Stephen's Tower, it was renamed Elizabeth Tower in 2012 to honor Queen Elizabeth II's Diamond Jubilee. The clock, designed by Edmund Beckett Denison, features a unique gravity escapement that keeps it ticking with remarkable precision. Despite some hiccups over the years, like cracks in the bell and wartime silences, Big Ben continues to chime every hour, marking time in the heart of Westminster.