This would have to be the most spectacular ghost town we have visited to date.
Kennecott, a former copper mining town, is located a few miles out of McCarthy Alaska in Wrangell—St Elias National Park and Preserve.
The old concentration mill build is a wobbly-spooky 14 story monstrosity that clings to the mountainside above the Kennicott glacial valley (The glacier is spelt with an 'i' the town with an 'e' due to a typo back in the day)