https://this-museum-is-not-obsolete.com/ https://www.themicromuseum.org/
https://this-museum-is-not-obsolete.com/ https://www.themicromuseum.org/
https://www.museumofcomputing.org.uk/
I wouldn't recommend going out of your way to visit it, but if you find yourself in Swindon for some reason, then it's worth a peep.
While you're there, take a stroll around Bletchley Park as well. Last time I checked, you get a discount when visiting both, and they're right next to each other.
Yes, I've been on the Magic Roundabout, nearly shat myself and I wasn't even driving.
(While they don't brand themselves as a museum and it's very much about playing the games, they have an incredible collection of arcade gaming history)
https://www.nwcomputermuseum.org.uk/ - with quite a nice looking but frustrating website...