|Big Ben = Elizabeth Tower|
The iconic parliament clock tower's official name is not Big Ben but the rather unimaginative Clock Tower. The name 'Big Ben' was a mystery in term of its origins. There are two theories as to why the clock tower came to be known as so, the first and widely accepted being in honour of Benjamin Hall, the engineer whose name was inscribed on the bell, and the second, named after Ben Caunt, a champion heavyweight boxer in the 1850s.
Even with the name change, the affectionate name of Big Ben will continue to stick around.