If you like massive underground structures, you should check out Subtropolis in Kansas City. I've run a 5K in there as well as gone paintballing,(reply>), TheUallis I live in Kansas City and have never heard of that,(reply>), any links,(reply>), Sounds a little salty to me.....,(reply>), @Draw a Pretzel It's on the Missouri side,(reply>), missouri or kansas? i dont think ive ever heard of this place.