I want to ride on the Amtrak Coast Starlight Train. The Coast Starlight hits all the highlights: the dramatic cliffs along the PCH, Mount Shasta, the San Francisco Bay, Oregon's Cascade mountains, Mount Rainier, and Puget Sound.
Seems silly-- but the Hogwarts Express at Universal Orlando Resort doesn't QUITE make the cut on this one.
I feel like I've missed out on such a staple of transportation not only in the US but the world. Trains just are not a significant part of Detroit living.