I read that Vigilant Citizen article about the Denver airport and then finally had a reason to fly through the airport a few years back.

I was surprised that the murals are not all together. I had to go looking for each one. So they are even more esoteric and jarring in person because there is no context for any of it... They're just tucked away there amongst the Sbarro's and Cinnabons. Go into the little convenience store for a magazine and some pretzels and see a gasmask grim reaper right outside the door