I went to Bletchley Park yesterday with a group of research students and a colleague.
I hadn't visited before and I was really impressed by the wealth of exhibits and the way in which everything was presented.
Our volunteer guide (John) really knew about the place and the history and bought life to the whole experience, we spent about 90 minutes going round from our start in the block where Alan Turing worked, via Mansion, the Post Office, the Bombe and finishing up at Colossus.
I know there was lots that I didn’t see, but my ticket is valid for a year so I will have to go again.