I do believe this is Whitefish Montana. I remember the lit racks. You can pick up a free paperback there to read on the Empire Builder if you are not interested in the Plains east of Cut Bank.
It was the pre-civil war hint that did it for me...... personally I have never been inside the Martinsburg station. Looks nicer than I realized.
OK...... here's one - this is an inactive Amtrak station. The Amtrak train on this route still passes by here but the Amtrak stop has been moved a few miles away to a different suburb. There are clues which the sharp-eyed station spotter will likely pick up though. I rate this one as 'moderately easy'.
It's the old B&O station at Silver Spring, MD circa 1981 or so.
Photo taken from a DC Metro Red Line train by a teenager with a fairly new camera. I had no idea at the time that just over a decade later I would wind up living nearby while in grad school at the University of Maryland.
You're up sir.
And now I'm off for a little train ride operated by the good folks at the Tennessee Valley Railroad Museum.