Bletchley Park, Bletchley

Must see · Historic Site · Tourist Spot
Bletchley Park is an English country house and estate in Milton Keynes (Buckinghamshire) that became the principal centre of Allied code-breaking during the Second World War. The mansion was constructed during the years following 1883 for the financier and politician Sir Herbert Leon in the Victorian Gothic, Tudor, and Dutch Baroque styles, on the site of older buildings of the same name.

During World War II, the estate housed the Government Code and Cypher School (GC&CS), which regularly penetrated the secret communications of the Axis Powers – most importantly the German Enigma and Lorenz ciphers; among its most notable early personnel the GC&CS team of codebreakers included Alan Turing, Gordon Welchman, Hugh Alexander, Bill Tutte, and Stuart Milner-Barry. The nature of the work there was secret until many years after the war.

According to the official historian of British Intelligence, the "Ultra" intelligence produced at Bletchley shortened the war by two to four years, and without it the outcome of the war would have been uncertain. The team at Bletchley Park devised automatic machinery to help with decryption, culminating in the development of Colossus, the world's first programmable digital electronic computer. Codebreaking operations at Bletchley Park came to an end in 1946 and all information about the wartime operations was classified until the mid-1970s.

After the war, the Post Office took over the site and used it as a management school, but by 1990 the huts in which the codebreakers worked were being considered for demolition and redevelopment. The Bletchley Park Trust was formed in 1991 to save large portions of the site from development.

More recently, Bletchley Park has been open to the public and houses interpretive exhibits and rebuilt huts as they would have appeared during their wartime operations. It receives hundreds of thousands of visitors annually. The separate National Museum of Computing, which includes a working replica Bombe machine and a rebuilt Colossus computer, is housed in Block H on the site.
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Bletchley Park reviews

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TripAdvisor traveler rating 4.5
7,609 reviews
Google
4.7
TripAdvisor
  • Recently visited Bletchley Park and cannot recommend highly enough. All COVID precautions are in place. The place it’s self is full of amazing historical information kept in perfect condition. Modern....  more »
  • So much to see, allow 5-6 hours for your visit. Good mix of films, historical displays, interactive exhibits and beautiful setting. Learned so much about the importance of the code breakers in the...  more »
  • We had a really great day at Bletchley Park. The staff were very organised & the covid awareness & social distancing was good in most areas. There was a slight build up in the first museum display...  more »
Google
  • Wonderful day out for all ages! I would recommend giving yourself half a day to explore as there are so many interesting things to see! The free audio guides gave quick and interesting information, and the entrance ticket is valid for a whole year! We will definitely be returning for another brilliant day at Bletchley Park!
  • The original building and grounds of Bletchley Park where enigma was cracked. It's a great day our, although half a day is sufficient. Plenty to read as you go around, a restaurant and cafe. Lots to learn but there isn't an awful lot there. Obviously after the war it was all cleared out so mainly just buildings and empty rooms. Lovely grounds. Also your ticket once bought is valid for as many entries as you want for a year. Worth a visit. Take drinks and food though as they are expensive. But I'd recommend having an ice cream.
  • Fascinating! Provides an excellent insight into the secret work of code breakers during WW2 which directly and positively affected the outcome of the war. Plenty to see and do; many areas have been carefully restored. Needs more than one day to appreciate fully. Tickets are valid for 12 months so return visits are welcomed.
  • Very enjoyable So much to see and we'll set up with guided tours and multimedia guides included in the price. The cafes were efficiently run as well. So much to see in many different exhibitions and huts that we couldn't do it all in one day do will be making use of the to let's which are automatically good for one year. Highly recommended for history and learning.
  • Great museum telling the story of the WW2 code breakers. Lots of recreated buildings including the main house. Many interactive activities to enjoy as well as original exhibits. £20 adult admission but well worth it. You can easily spend a good few hours or more at Bletchley Park especially if you take advantage of the free tour of about an hour which is highly recommended. Two cafes on site and plenty of areas to picnic.

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