Technically, Big Ben is not the name of the clock or the tower; it is the nickname for the Great Bell that hangs inside the belfry. The tower itself was originally known simply as "The Clock Tower," but in 2012, it was officially renamed the Elizabeth Tower to commemorate the Diamond Jubilee of Queen Elizabeth II. The clock itself is officially referred to as the "Great Clock of Westminster." Despite these technicalities, the name "Big Ben" has become a globally accepted metonym for the entire landmark. In 2026, the name remains a point of pride for Londoners; the bell weighs a staggering 13.7 tonnes and is famous for its "E" note chime. The nickname's origin is still debated—some say it was named after Sir Benjamin Hall, the robust Commissioner of Works, while others believe it honors the heavyweight boxing champion Benjamin Caunt. Regardless of the semantics, when you look at the iconic silhouette from Westminster Bridge, you are looking at the Elizabeth Tower, containing the Great Clock, which strikes the massive bell known as Big Ben.