Geograph - photograph every grid square

Originally the home of the financier and Liberal MP, Sir Herbert Samuel Leon (1850–1926), the Bletchley Park Mansion evolved in line with its owner's eccentric tastes into a hotch-potch of Victorian Gothic, Tudor and Dutch Baroque architectural styles. The estate, which was sold by the Leon family in 1937, was to become the centre of the UK's main decryption effort during WWII, and it was here that the codes and ciphers of several Axis countries were decrypted, among them the ciphers generated by the German Enigma and Lorenz machines.

[Credit for above paragraph goes to Ian Petticrew Link ]

For many more photos of the site, see Basher Eyre's portfolio: Link