Interactive Map

Built in 1942, Block C is your first port of call upon arrival at Bletchley Park. The exhibition Secrets Revealed introduces you to the incredible stories of what happened here during World War Two. Interactive displays offer you a glimpse into the complex world of WW2 codebreaking and will start to reveal some of the work which was done here and was kept secret for so long. Pick up a free multimedia guide before heading out to continue your journey around the site.

The most iconic building on site is where the first Codebreakers were based before the workforce expanded into newly built huts and blocks. The Mansion continued to serve as a head office and leisure building. Today you can explore a number of exhibitions here, such as Early Days and Veterans’ Stories, as well as the office of Alastair Denniston, Head of the Government Code and Cypher School, and the Library, atmospherically dressed as it would have looked as a Naval Intelligence office during WW2.

Explore two restored wartime codebreaking Huts 3 and 6, where Enigma messages sent by the German Army and Air Force were decrypted, translated and analysed for vital intelligence during WW2. Interpretive exhibits allow you to experience what it was like to work in wartime Bletchley Park. Plus “meet” some of the Codebreakers and listen to the men and women tell the stories of what happened inside these spaces through interactive exhibits, including sounds, projected images and authentic set dressing.

Formerly the codebreaking hut leading the breaking of German Naval Enigma messages, today Hut 8 houses exciting interactive exhibitions helping you understand the different methods the Codebreakers used to help them with their work. This wartime hut also houses the office of Alan Turing, Head of Hut 8, recreated to how it would have looked in World War Two, complete with a mug chained to the radiator!

Hut 11, the wartime hut that housed the Turing-Welchman Bombe machines, now restored and refurbished with an atmospheric exhibition giving a voice to the women who worked the machines in the hut they dubbed the “Hell-Hole”. Step in and experience the sounds of the wartime Bombe machines and learn what it was like to work on these magnificent machines in the primitive hut conditions. Interactive activities and moving film bring to life this top secret but hugely important work. Hut 11A houses the permanent exhibition The Bombe Breakthrough.

As the codebreaking factory outgrew the Mansion, Cottages and huts, a decision was made to start building more permanent brick and concrete blocks. Block A was meant to house staff from Naval, Air and Army sections, but staff working on the translation and analysis of naval Enigma messages completely took over the building, such was the volume of intelligence they were producing. Block A was restored and opened to the public for the first time in 2022 and houses our largest permanent exhibition space, The Intelligence Factory. Block A also contains a temporary exhibition space. Look out for our next exciting exhibition!

BAE Systems are the Lead Principal Sponsor for The Intelligence Factory exhibition.

Block B was built as Bletchley Park grew into a mechanised codebreaking factory and today it houses various exhibitions and galleries. Highlights include The Life and Works of Alan Turing, the largest public display of Enigma machines in the world and an exhibition about the breaking of the Lorenz cipher – Hitler’s ‘Unbreakable’ Cipher Machine. Trace the Government Code & Cypher School’s (GC&CS) transition to a peacetime organisation in the exhibition From GC&CS to GCHQ.

The Teleprinter Building was a key wartime communications hub and in recent years restored close to its exterior wartime appearance. The landscape around the building marks the position of wartime support buildings that were later destroyed, giving a more complete picture of the Bletchley Park site in WW2. This building now houses an immersive exhibition which is one of the highlights of your visit, D-Day: Interception, Intelligence, Invasion.

BT is the Sole and Exclusive Corporate Partner of the restoration of Teleprinter Building and the Exclusive and Sole Partner of the Exhibition.

The National Radio Centre (NRC) is a showcase for radio communications technology. Operated by the Radio Society of Great Britain, in partnership with the Bletchley Park Trust, this fascinating exhibition traces the development of radio communications from inception through to the current day.

TNMOC is an independent trust with its own admission fee and separate entrance. Home to the world’s largest collection of working historic computers, the museum enables visitors to follow the development of computing: from the Turing-Welchman Bombe and the Colossus of the 1940s through the large systems and mainframes of the 1950s, 60s and 70s, to the rise of personal computing, mobile computing and the internet.