The restoration effort at Bletchley Park has gone over the top. I visited the place on a weekday in 2002, when almost nobody went there unless they were really into crypto history. It was run down, and there were only about 10 people visiting that day. The tour guide was more into the architecture of the mansion than the crypto, although they had a bombe model (a prop made for a 2001 movie) and had started on the Colossus rebuild. The only thing that worked back then was one Enigma machine. A non-working Lorenz machine and some other gear was in glass cases. The guide pointed out where various of the huts had been. It was just one of those obscure, slightly run down historical spots one visits in England, with the usual lake and swans.

Then they got National Lottery funding. Now they've rebuild most of the huts in brick, re-landscaped the grounds, have elaborate displays, added the "National Museum of Computing", renamed it "Historic Bletchley Park", put in a visitor's center, a children's playground, a cafe, and, of course, a gift shop. There's "Turing Gate" "Colossus Way", "Enigma Place", two memorials, and more stuff under construction.

All this is on the Bletchley Park side. The Colossus rebuild is at the National Museum of Computing, which is on the same property but has separate staff and funding. (http://www.tnmoc.org/) They don't get along with the Bletchley Park tourist operation and don't have public funding. ("Other exhibitions are available at Bletchley Park, but operated independently of the Bletchley Park Trust.", says the Trust site.)