In the annals of visits to new places, on Sunday I joined the school trip to Bletchley Park. It sounds interesting and cool when you read about it, but in person, it's way better!
Bletchley doesn't sound like the sort of place with lots of scenery pictures, but it's beautiful. If I lived near, I'd get a year pass just to picnic on the grounds regularly. They've got lots of comfortable looking seating around the grassy area, and it looks very inviting.
Alas, I only had a few hours, so I didn't stop to sit down except for a quick bite to eat.
First up is the manor house. It's very beautiful inside, and there are displays about the work done at Bletchley and the people who did the work. They seem to focus a lot in the manor on the recreational side of things, while other areas focus more on the work.
I think they said the code was reciprocal, so if A --> X, then X--> A.