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Where the state kept its secrets and where the spies were made up: the bugged mansion, the bunkers, the headquarters you can only look at, the memorials to the agents, and the addresses of Bond and Smiley.
Inside Freemasons' Hall, the art deco temple of the United Grand Lodge on Great Queen Street, a free museum of regalia, ritual and the secrets that are not really secret.
MuseumsSecret societiesGo insideFree
Also in Museums.
The 1933 hall is the headquarters of English freemasonry and the grandest art deco interior in London - the Grand Temple seats seventeen hundred under a ceiling of mosaics - and the museum off the entrance hall shows aprons, jewels, tracing boards and the Masonic treasures of three centuries with a straight face and a good deal of explanation. The tours take you into the Grand Temple itself; the building doubles as MI5's headquarters in Spooks and as half the period dramas made in London.
| Monday | Closed |
|---|---|
| Tuesday | 10:00 – 17:00 |
| Wednesday | 10:00 – 17:00 |
| Thursday | 10:00 – 17:00 |
| Friday | 10:00 – 17:00 |
| Saturday | 10:00 – 17:00 |
| Sunday | Closed |
Hours from the page that lists them, checked 5 September 2026.
Free; the library closes for lunch and on Saturdays. Tours of the Grand Temple are booked separately.
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Data is compiled from public sources including OpenStreetMap, under the ODbL. Hours change often, so check before making a journey.