Big Ben

Big Ben is the nickname for the Great Bell of the striking clock at the north end of the Palace of Westminster; the name is frequently extended to refer to both the clock and the clock tower. The official name of the tower in which Big Ben is located was originally the Clock Tower; it was renamed Elizabeth Tower in 2012 to mark the Diamond Jubilee of Elizabeth II, Queen of the United Kingdom.

The tower was designed by Augustus Pugin in a neo-Gothic style. When completed in 1859, its clock was the largest and most accurate four-faced striking and chiming clock in the world. The tower stands 316 feet tall, and the climb from ground level to the belfry is 334 steps. Its base is square, measuring 40 feet on each side. Dials of the clock are 22.5 feet in diameter. All four nations of the 1859 UK are represented on the tower in shields featuring a rose for England, thistle for Scotland, shamrock for Ireland, and leek for Wales. On 31 May 2009, celebrations were held to mark the tower's 150th anniversary.

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