Comment by AlbertCory

How about real trains you can ride on?

https://www.nbcbayarea.com/news/local/historic-bay-area-mode...

There's another one in the hills above Palo Alto that's open to the public once a year. Now I can't find it online. Anyone? It's not Roaring Camp.

This was a real train on private land, with a machine shop and a crew of volunteers. It had a loop of several miles.