And south of me...
FAST
http://www.airsciences.org.uk/ free and parking, an recently an interesting radio display.
Army Medical Museum
https://museumofmilitarymedicine.org.uk/ Inside an army camp, 100 yard walk from parking (but I am sure they will let drive up to it if walking is a problem). Free.
Aldershot military Museum
https://hampshireculturaltrust.org.u...ilitary-museum A few quid to get in, (three I think), smallish, a look at military life in Aldershot through the ages.
Royal Logistics Museum
http://www.royallogisticcorps.co.uk/heritage/museum/ Free, well presented look at what keeps the army fed with food and bullets.
And to the north...
Tring Natural History
http://www.nhm.ac.uk/visit/tring.html Free, overwhelming collection of stuffed animals, mice to mamoths (no actual mamoth, you get the idea). You have to like kids, local schools love days out there.
Bletchley Park
http://www.bletchleypark.org.uk/ Quite expensive at £15 approx, years pass though (you will need it, spend a few days in a local B&B). The TNMOC is in the same site but separate (politics!)
http://www.tnmoc.org/about-us?gclid=...FYGw7Qodgr0OFg
Milton Keynes Museum
http://www.miltonkeynesmuseum.org.uk/ Rather good, six quid and a years pass, cafe run by lovely ladies proper cake too! The Telecoms museum (wired earth) is there, working exchanges etc..
As you all may have gathered I like museums, especially the smaller ones. I make it a mission upon the weekend to visit at least one and have yet to be disappointed. One way I find them is by using Google Earth and turning off everything except the museum tick box.