I'll put train videos on for the kids, but there's so much more going on with a steam train.
Steam is billowing out of everywhere, they're just this massive piece of infrastructure, it's like taming the elements with an unholy union of water and fire - natural enemies in the wild, and you get to feel like a hero because you're helping people get to places.
This bit warms up and pushes this bit, which through some linkages synchronise a bunch of other things and then 10 tonnes of steel move at a nice clip