On 27th September 2019 the sixth graders celebrated the 160th anniversary of Big Ben (1859 -2019), a famous tower clock of the Palace of Westminster in London, by making a 3D puzzle of it and its surroundings. The name Big Ben is often used to describe the tower, the clock and the bell but the name was first given to the bell. The official name of the tower in which Big Ben is located was originally the Clock Tower but it was renamed Elizabeth Tower in 2012 to mark the Diamond Jubilee of Elizabeth II. It represents one of the most prominent symbols of the United Kingdom.