I've really enjoyed some recent(ish) documentaries on the BBC about:
- the London Underground
- Crossrail
- Supermarket Secrets

They have loads of stuff in them about jobs you would never really think about but someone has to do them in order for society to function the way it does. There are loads of others too, especially in energy, and I bet loads of ones I don't know about.

Ever done, no someone who has done, or even just heard about a job that people don't know about but that is actually quite a major part of how we live our lives?