(FILES) This file photo taken on August 17, 2017 shows
The three-train clock, known as the Great Clock, which drives the hands, hourly chimes, and the quarter-hourly chimes of the bells, including the famous Big Ben bell, is pictured in the mechanism room ahead of the planned renovation work on the Elizabeth Tower, on August 17, 2017, at the Houses of Parliament, part of the Palace of Westminster, in London.
London landmark Big Ben will fall silent for four years from August 21, 2017, as a political revolt rumbles on over renovations that will rob Britain of a cherished symbol at a time of national uncertainty. / AFP PHOTO / POOL / Victoria Jones
Foto: AFP - VICTORIA JONES