As is the case with underground fires, it’s not like you can see them burning. People found out about the fire years after it was allegedly ignited because kids kept falling into sinkholes. Random pits started forming in the ground at Centralia, releasing deadly plumes of carbon monoxide gas and steam. Of course, no one could agree on the extent of the fire, and people fought for decades over whether or not they should leave. Senator Bob Casey made the decision for them when he declared eminent domain over the area in 1992.