It is named after a bell in the clock, called Big Ben.
Big Ben is the nickname of the biggest bell in the Tower, the 13.5 ton 'Great Bell'.
It got it's name from Sir Benjamin Hall the commissioner of works and MP of the time.
The clock tower of the Palace of Westminster (Houses of Parliament), commonly known as Big Ben.
The clock tower (commonly known as Big Ben) is attached to the Parliament building.
Because it is an iconic feature of London, known all over the world, in the same way as the Eiffel Tower in Paris, the Colosseum in Rome and the Statue of Liberty in New York.
The Westminster Clock Tower, traditionally known as Big Ben.
London, England
I think that you mean CLOCK tower!! It's usually known as 'Big Ben'.
Big Ben
London in England - the clock tower is called Big Ben.
It is an iconic landmark of London although many foreigners confuse it with London Bridge.
There are 'clock towers' all over the world. Possibly the most famous is 'Big Ben' at the British Houses of Parliament
The great bell of the clock tower of The Palace of Westminster, London is also known as 'Big Ben'. It is made from cast bronze. The clock tower is made of Caen stone.
The clock tower (incorrectly) known as 'Big Ben' but in fact is called the Elizabeth Tower (previously called the Clock Tower or St. Stephen's Tower) , is attached to the Houses of Parliament in Central London.