This hidden stone has absorbed decades of human anxiety.

The picturesque southern city served as the zombie-filled town of Woodbury in 'The Walking Dead.'

This ever-changing arrangement of naked dolls even caught the attention of "The Walking Dead" crew.

A museum and doll store featuring a surreal and super sanitized version of where babies come from.

Constant erosion has created a surreal landscape of bleached and preserved fallen trees.

Scattered around Atlanta are little doors with big charm.

Hiding behind a grocery store is a spectacular cavern carved as part of an old limestone quarry.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

Enormous lake at the bottom of a unique cave system.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

This bright yellow relic is the final survivor of a short burst of seashell-shaped petrol pumps.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

An abandoned village that doubled as "The Hunger Games"' post-apocalyptic wasteland is up for grabs.

A former Oz-themed attraction that has fallen into disrepair, but still holds some of the original magic.

These eerie outliers of the lightning bug family glow a mysterious blue color.

This woodland architectural installation acts as a camera obscura for the heavens.

Discovered by a soldier during the Revolutionary War, these springs helped create an iconic South Carolina ginger ale.

An unfinished rail tunnel that has since been used to house cheese and bats.

One of the oldest living oak trees in the Southeast.