If you visit Alaska perhaps one the places you will see is Skagway. The biggest employer in that town is the White Pass & Yukon Route Railroad. It winds from the sea port up the mountains into British Columbia. If you like trains then add this to your list because not only is the scenery spectacular there's a lot of history preserved in these trains and the rail museum in town.
We took an excursion up to the top of the pass which takes about an hour-and-a-half one-way. On the way up we were in the first car behind the engine but on the way back the engine reattached to the other end and we were at the rear. That afforded me the chance to stand out the back and capture this other train as we entered the main track from a siding.
This is a popular attraction and for good reason. When we booked the trip there were no more standard tickets so we booked the first class parlor car. Boy, that was nice, we had soft cushioned seats, an attendant and all the food and drink we wanted. However I couldn't manage to sit still, I preferred to stand on the outside platform taking picture most of the way. When we finally got back to lower elevations I came back in the coach to find everyone asleep in their comfortable chairs. That was pretty funny, but I'm still glad I stood outside and enjoyed the scenery from the cheap seats, even if I did pay for a comfy chair inside.