London's Big Ben will be celebrating its 150th birthday on May 31st.
It is at the north-eastern end of the Palace of Westminster in London, the Clock Tower is also referred to as Big Ben.
Big Ben is the world's largest four-faced clock and stands 314-feet high.
There is no elevator so for the few that is granted admission, they must climb 334 stairs.
The old Palace of Westminster was destroyed by fire on October 22, 1834 therefore Charles Barry designed the present tower as a part of the new palace.
May 31, 1859 the clock officially started keeping time
Note: 1 foot =.30480 of a meter
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