Big Ben or the full name is Clock Tower of Westminster Palace and the new name is Elizabeth Tower is a clock tower structure on the Northeastern side of the Houses of Parliament in Westminster, London, England. Although widely known as Big Ben, this name is actually the name of the heaviest bell, 13.7 tons, of the five bells every 15 minutes placed inside the tower. The clock tower is also mistakenly called St. Stephen's Tower.
On the parade day to celebrate the 60th anniversary of the reign of Queen Elizabeth II, the British Parliament has declared the Big Ben tower to be renamed Elizabeth Tower starting June 4, 2012.
This tower was commissioned as part of Charles Barry's design for a new castle, after the destruction of the Westminster Palace on the night of October 16, 1834. The tower was designed in Victorian Gothic style and is 96 tall, 3 m.
The first 61 m of the structure was a clock tower, including brick-covered bricks; The rest of the tower height is a cast iron pyramid structure. The foundation is 15 x 15 m wide, 3 m thick concrete, 7 m deep underground. Tower weight 9553 tons. Four 55 meter high watch faces on the ground. Due to the condition of the ground since its construction, the tower is slightly inclined to the northwest, about 220 mm. Due to the thermal effect, the tower swayed slightly to the east-west every year.