Bletchley Park Mansion

Day trip to Bletchley Park, where the Brits worked to break the German enigma codes, and pretty much invented modern computing, during WWII. Unfortunately, we couldn't get in to see the interior because there was filming going on -- a movie called The Imitation Game. The mansion house is also seen in the opening of The Bletchley Circle episodes.

Update: I saw The Imitation Game, and they used an entirely different mansion house (Joyce Grove, Nettlebed, Oxfordshire) for the exterior shots, which really makes no sense. But I think some of the interior shots were done inside.