I've only been to Tombstone and that was before I actually lived here, so around age 9 or 10 probably? I need to take a road trip to hit a few of 'em before getting the hell out of here. There's actually a pretty cool abandoned place still on the way between Cortez Junction and Phoenix that used to be a dog racing track, the sign now says "Dog Rack" and still hasn't been cleaned up, I think.
All links provided look like exactly what I've been looking for but limited time now - more browsing when free tomorrow.
Edit: also really happy to see that a lot of the links added aren't full of places ruined by stupid-looking graffiti art. Hate that shit.