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1. Big Ben

2. Big Ben is the nickname for the great
bell of the clock in London. Big Ben is
the largest four-faced chiming clock
and the third-tallest free-standing
clock tower in the world.

3. The clock became operational on 7th
September 1859.

4. The four faces of the clock are 55
meters above ground

5. At the base of each clock face is
written.
"O Lord, keep safe our Queen
Victoria the First"