Comment by oniony
The Avoncroft museum of buildings in Bromsgrove, near Birmingham, UK, is worth a visit. They have a bunch of old telephone boxes all working and hooked up to an exchange they have on site. I spent like an hour talking to the guy in there about it all, pretty fascinating.
https://avoncroft.org.uk/avoncrofts-work/special-collections
If you find yourself in that part of the world, there's also a carpet museum in Kidderminster, and the Black Country Museum in Dudley. A little bit further north and then there are a slew of industrial museums in Ironbridge.