If you have the resources, find out what museums are in your area, or plan trips to the museums that contain things you'd be interested in.

For example https://www.youtube.com/watch?v=MikoF6KZjm0 is in a museum, as is https://www.youtube.com/watch?v=NEbMksxQAgs. You can go and check them out and poke them (to some extent).

While watching videos is really awesome, actually being able to watch these things in action provides a level of context that is impossible to convey digitally.