The famous old clock in London, England, or Big Ben, is attached to the bell tower of the British Parliament Hall and was built in 1859. Installed on the 95-meter-high bell tower on the east side of the North Parliament Building in Westminster Bridge, the circular bell plate around the bell tower is 6.7 meters in diameter and is a traditional landmark in London.

The clock weighs 13.5 tons, the dial diameter is 6.7 meters, the length of the hour hand and the minute hand are 2.75 meters and 4.27 meters respectively, and the pendulum weighs 305 kilograms. As a symbol of London and Britain, Big Ben is huge and gorgeous, weighing 13.5 tons, and its four clock faces cover an area of about two square meters. Big Ben has been telling the time for the City of London since 1859. For nearly a century and a half, it has been ringing every hour according to Greenwich Mean Time. London, also known as the famous ancient clock Big Ben, reports from the Palace of Westminster that the bell tower annex of the British Parliament was built at 1859. The bell tower installed on the east side of Westminster Bridge North Parliament Building is 95 meters high, surrounded by a disk with a diameter of 6.7 meters, which is a traditional landmark in London.

The weight of the clock 13.5 tons, the diameter of the disk clock is 6.7 meters, the length of the hour hand and the minute hand are 2.75 meters and 4.27 meters respectively, and the pendulum weighs 305 kilograms. As the symbol of London and Big Ben in England, it is great and magnificent, weighing 13.5 tons, with four clock faces covering an area of two square meters. Big Ben in London started to clock the city from 1859, and it has been ringing every hour according to Greenwich Mean Time for nearly a century and a half.