Once one of the largest producers of pig iron in the world.

Joe Minter is only doing the work of God in his yard, he says.

Cadillac where country's first big star was found dead.

A former taxidermist has turned his old shop into a folk art mecca.

Largest display of Wesleyana anywhere in the world.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Famous for its bio-luminescent inhabitants, known as "dismalites."

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

An enormous concrete structure built over a nuclear crater.

Enormous lake at the bottom of a unique cave system.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

A Saint Nicholas-themed ghost town in the Mojave desert.

This abandoned amusement park was built on a site with a dark history.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

This derelict superstructure was a very important warning system for the Soviet military.

This attraction was abandoned after the Chernobyl disaster.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.