The Queen Visits Bletchley Park
15 July 2011, 12:30 | Updated: 15 July 2011, 16:15
The Queen has been at Bletchley Park this morning to honour the work done there by the World War Two code-breakers.
Her Majesty was accompanied by Prince Phillip for the visit.
She's been shown a restored Colossus Machine which was one of the first computers and was used to crack the German's Enigma code during the Second World War.
Some of the staff who worked in top secret at the park were on hand for the visit.
Their work is credited by historians in shortening the war by up to two years.
87 year old Jean Valentine worked as a bomb operator at the park at 1943. To listen to her reaction from meeting the Queen click here
Simon Greenish is the director at the park. Listen to his full interview with Heart here.