Oh yeah -- and depending on where you live, there might be a lot of good docs about local stuff on your local-access and PBS stations. We have
Huell Howser here in California, and back in PA (where I'm from) we had PCN, which would offer
video tours of Pennsylvania industry. They were plotless but fascinating. We also had
Our Town in central PA, which consisted of locals giving tours of the places they loved in their hometowns. You may have something similar in your area.