Bletchley Park - in pictures

  • Bletchley Park, pictured in 1926, became the centre of allied code-breaking activities during the Second World War, where Germany's Enigma and Lorenz codes, both considered unbreakable, were deciphered. All photos: Getty Images
    Bletchley Park, pictured in 1926, became the centre of allied code-breaking activities during the Second World War, where Germany's Enigma and Lorenz codes, both considered unbreakable, were deciphered. All photos: Getty Images
  • The machine room in hut six of Bletchley Park in 1943. Cryptographers at the centre intercepted and deciphered top-secret military communiques between Hitler and his armed forces
    The machine room in hut six of Bletchley Park in 1943. Cryptographers at the centre intercepted and deciphered top-secret military communiques between Hitler and his armed forces
  • The control panels of Colossus, the world's first electronic programmable computer, at Bletchley Park in 1943. Codebreakers at Bletchley cracked Germany's Lorenz code with the help of Colossus
    The control panels of Colossus, the world's first electronic programmable computer, at Bletchley Park in 1943. Codebreakers at Bletchley cracked Germany's Lorenz code with the help of Colossus
  • The intercept control room in hut six at Bletchley Park in 1943
    The intercept control room in hut six at Bletchley Park in 1943
  • Queen Elizabeth II presses the button to start the enigma codebreaking machine as Prince Philip, Duke of Edinburgh, and wartime operator Ruth Bourne look on during a visit to Bletchley Park in 2011
    Queen Elizabeth II presses the button to start the enigma codebreaking machine as Prince Philip, Duke of Edinburgh, and wartime operator Ruth Bourne look on during a visit to Bletchley Park in 2011
  • Former 'Wrens' and Colossus operators at Bletchley Park in 2016
    Former 'Wrens' and Colossus operators at Bletchley Park in 2016
  • Jacqui Garrad, the commercial director at The National Museum of Computing, demonstrates how Colossus was used
    Jacqui Garrad, the commercial director at The National Museum of Computing, demonstrates how Colossus was used
  • The Enigma coding machine that was used by the Germans during the Second World War
    The Enigma coding machine that was used by the Germans during the Second World War