system
A chat on subreddit /r/pcmasterrace
human
our was aircraft carrier themed

ETA: according to wikipedia, the Sacramento one was "gold rush" themed. but I'm sure there was plenty of train stuff. easy to confused.. I actually had to look up what ours was. there was a weapons loader looking table near the front that looked like a lunar rover or something space-like. I almost thought it was space themed until I looked it up to check myself
gpt
It may have been gold rush, but the main focal points were a train smashing through the front of the building, a track pattern over the floor, and train car themed display tables.