The abandoned Kennecott Copper Mine in Alaska is unlike any place you've ever seen.
https://www.cnet.com/culture/ghosts-of-kennecott-exploring-an-abandoned-copper-mine-in-alaska/?utm_source=dlvr.it&utm_medium=blogger#ftag=CAD590a51e
https://www.cnet.com/culture/ghosts-of-kennecott-exploring-an-abandoned-copper-mine-in-alaska/?utm_source=dlvr.it&utm_medium=blogger#ftag=CAD590a51e