In UK, the authorities said today that the lamp at the top of the Elizabeth Tower, which houses the iconic Big Ben, will be switched off for the first time in more than 70 years. Located above the Great Bell known as Big Ben, the Ayrton Light needs to be fully dismantled and restored. Installed in 1885, the historic lamp was previously turned off only during both world wars. <br/><br/>BBC has reported that Big Ben will not chime regularly until 2021 because of repairs to the tower. The light is said to have been installed at the request of Queen Victoria, so that she could see from Buckingham Palace when members of either the Commons or the Lords were sitting after dark.