Look! There was room for a little yoga studio / dojo on the train. :-)
My first reaction to seeing it? “BWAAAHAHAAA! MINE!!!”
This used to be, I think, the Arcade Car – with crappy old video games, or maybe it was a baggage area. In any case, several of us found refuge down there, in the basement of the car. There was a guy who does Tai Chi, and has sciatica, who was as happy as I was to have found an open space to move and stretch. Several others dropped by, including a Mennonite family with tiny kids. A bunch of us hung out down there for the Atlas V launch, did some yoga, went through Aikido class warmups, etc. Every long-distance train should have a room like this!