Bletchley Park mansion, Bletchley Park

Visitors in 1940s clothing, Bletchley Park

Visitors in 1940s clothing, Bletchley Park

Enigma machines, Bletchley Park

"TypeX" machine, modified to translate an enciphered message after entering the codes resulting from decryption.

Bombe machine that helped to crack the day's Enigma code, Bletchley Park

Workflow for cracking each day's code and decrypting messages, Bletchley Park

Info about Alan Turing, Bletchley Park.

Alan Turing's office, Bletchley Park, England.