Scattered around Atlanta are little doors with big charm.

An elegant Georgian cemetery best known for the grave of the little girl whose murder on Christmas Day remains unsolved.

Dubbed the "smallest church in America," this tiny sanctuary was a local grocer's dream come true.

The ruins of a paper mill destroyed during the Civil War still tower over a tributary of the Chattahoochee River.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

This natural spring not only claims to heal the wounded but it has also been willed to God.

Bad farming practices caused this unnatural natural wonder.

This former maximum-security prison is creepy, sobering, and supposedly haunted.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

The highest point in Alabama was almost completely deforested, but is now home to protected towers and trees.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

Enormous lake at the bottom of a unique cave system.

This folk art compound was built by a fortune teller on the advice of three people from the future.

A curious whirlpool formation supposedly capable of entangling or engulfing branches, tree trunks, or whole rafts full of hapless tourists.

The perfectly named cave drop is the deepest in the continental United States, almost matching the height of Seattle’s Space Needle.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

Crumbling ruins mark the site of a couple's grisly murder in the woods.

These ancient ritual mounds are our best window into the culture of the ancient Mississippians.