The Queen visited the Crossrail site at Bond Street, where she unveiled the new purple Elizabeth Line logo which will feature across the network
During the visit The Queen saw many different areas currently under construction, including the ticket hall, one of the platforms and the railway tunnel itself.
Her Majesty was taken in an industrial lift to the site 92ft (28m) below ground, where she viewed part of the railway tunnel and met construction apprentices.
The Queen then unveiled a plaque marking Crossrail 1's naming as The Elizabeth Line, in Her Majesty's 90th year.
The Queen became the first reigning monarch to travel on the London Underground in 1969 when she opened the Victoria line.
In 1979 the Jubilee line was opened by the Prince of Wales, two years after celebrations to mark 25 years since the Queen's accession to the throne.