The Clock Tower, known worldwide as Big Ben (unfortunately in a wrong way because Big Ben is the nickname of one of the bells inside the tower) is a tower in Westminster Palace in London.
The Clock Tower is located in a corner of the palace that houses the House of Lords and the House of Commons, also known as the English Houses of Parliament. It is a square tower made by brick and stone and topped by a spire of cast iron to reach 96 meters. In each of the faces of the tower there is a clock. The watch face has a hour hand of 4.3 metres and a minute hand with 2.7 metres. It also has a 13 tons bell. The great bell is called Big Ben.
The Clock Tower, like the rest of the premises of the Palace of Westminster was built in the Gothic style or historical revival, during the Victorian era, due to the need of the British Parliament to distinguish the English government to the rest of Europe which they have Neoclassical buildings.