Here is a shot of the train we took from Seward to Anchorage a couple of years back. It was at the end of a cruise, and the only way back to the airport was a four-hour train ride through the mountains. Needless to say, it was a lot of fun.
I ended up roaming the train, back and forth through the cars like a kid in a candy shop. I would stop between the cars to take pictures of the scenery rushing by. This is how travel was meant to be.
If you stayed in your seat, they would come around and take your order for food and drinks. Unlike an airplane, you have a lot of space to stretch out and enjoy the meal. But I was on my feet most of the time, quite often at the front near the engine snapping photos like this.