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. Big Ben chimes every hour, with smaller bells chiming every 15 minutes. Despite some hiccups over the years, like cracks in the bell and wartime silences, Big Ben remains a beloved symbol of British timekeeping prowess.