Centralia, Pennsylvania, is a ghost town...on fire. Beneath its grass blades, a coal fire rages that has burned for half a century and will burn for centuries longer. Smoke wafts over the sites where neighborhoods once stood. Roads choke on overgrowth. Pockets beneath the topsoil are waiting to cave in at the next footstep. The idea of the place is terrifying. But the reality of the place is...fascinating. Heck, I brought my family with me on one of my visits.

• Photos from my first visit to Centralia.