THE GREAT BELL
Although many people refer to Elizabeth Tower as Big Ben, this moniker refers to the clock tower’s great bell, which was probably named after Sir Benjamin Hall. The original bell, which weighed 16 tonnes and was cast in 1856, cracked when it was tested. In 1858, a replacement was built, weighing 13 tonnes and standing two metres tall.
CLOCK ROOM
This room contains the clock mechanism, which is wound three times a week by hand. There are two parts of the mechanism, the chiming and striking trains, which drive the mechanisms that operate the hammers to sound the bells. The four small bells are rung by the chiming train, while Big Ben is rung by the striking train.
PRISON ROOM
There is a prison room inside the…