Big Ben

      Big Ben is the nickname for the Great Bell of the clock at the north end of the Palace of Westminster in London,  and often extended to refer to the clock and the clock tower.

The tower is officially known as the Elizabeth Tower, renamed as such to celebrate the Diamond Jubilee of Elizabeth II (prior to being renamed in 2012 it was known as simply "Clock Tower"). The tower holds the second largest four-faced chiming clock in the world (Minneapolis City Hallbeing the first). The tower was completed in 1858 and had its 150th anniversary on 31 May 2009, during which celebratory events took place. The tower has become one of the most prominent symbols of the United Kingdom and is often in the establishing shot of films set in London.

Clock The clock and dials were designed by  Augustus Pugin           

The clock dials are set in an iron frame 23 feet (7.0 m) in diameter, supporting 312 pieces of opal glass, rather like a stained-glass window. Some of the glass pieces may be removed for inspection of the hands. The surround of the dials is gilded. At the base of each clock dial in gilt letters is the Latin inscription

DOMINE SALVAM FAC REGINAM NOSTRAM VICTORIAM PRIMAM

Which means O Lord, keep safe our Queen Victoria the First.

Unlike most other Roman numeral clock dials that show the '4' position as 'IIII', the Great Clock faces depict '4' as 'IV'.

Photography & edited : WAAD

: references 

http://en.wikipedia.org/wiki/Big_Ben

https://www.youtube.com/watch?v=inD5GnTjs_E

and Summarization by 

Waad aldhanhani