This has to get the most bizzare reason for a ghost town ever. An underground non stop mine fire that has burned since the 1960's and created so much toxic gas that people had to move out in the 1980's. They reckon it wont stop for a minimum of 250 years!!!!
See more at : http://en.wikipedia.org/wiki/Centralia,_Pennsylvania
See more at : http://en.wikipedia.org/wiki/Centralia,_Pennsylvania