The overnight 14 Coast Starlight (Amtrak) from Los Angeles to Seattle.
3 states
1,377 miles
36 hours
29 stops (a few afford a chance for some fresh air, for a few minutes)
incalculable jaw drops at the beauty seen from along the ocean coastline to the snowy mountain ranges and backdoor views of towns and cities.

I can't recommend this enough! What an experience! What a way to see the country! The whole ride was smooth, quiet, and tranquil. Whether you enjoy a book in the glassdomed car while sipping on some coffee, or nurse a beer through the passing majesty outside your window, you are rocked gently into a relaxation that is unlike any other. The staff was ever ready to accommodate needs and/or wants. Guest speakers rode along, regaling passengers with tales of the flora, fauna, and history of the areas. Fellow passengers were in equal states of awe and wonder, evidenced by the acknowledging head tilts complete with twinkling eyes and hearty grins. Childhood fancy was stirred together with an aged appreciation and I found that though we were moving northward, time had stood still.

Note: Yes...I have since learned to refrain from filming in portrait mode, when using a phone.

Note: Thank you, all, who have clarified that it's a "Lounge Car" featured in this video, not an actual "Parlour Car." I did not intend to mislead anyone; during our ride, the staff and fellow passengers were calling it the "Parlour Car," and I was at fault for "following the flock" in my understanding. Our train's Parlour Car must have been undergoing maintenance, at the time. I did find, however, the Lounge Car to be quite enjoyable. Nevertheless, I imagine riding with an official Parlour Car would enhance the experience, greatly. Thank you all, for clarifying this, for me and for others.

Note: for mobile device viewers, annotations don't appear onscreen. At the 2:28 mark, it should be noted that "There is a traditional door on this bathroom; it's just not visible, here."

More: https://www.amtrak.com/coaststarligh...

The Coast Starlight Route Guide:
https://www.amtrak.com/content/dam/pr...
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Link showing the room specifics, including dimensions: https://www.amtrak.com/onboard/onboar...
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Music used, from the YouTube library:
"Cry," by Vibe Tracks