The ruins of a cotton mill that was burned in the Civil War are still hidden in a Georgia forest.

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

This "Plant Farm Museum" is home to the divinely inspired and visionary outsider artwork of Reverend Howard Finster.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

Orr Park's dead trees have been carved into a menagerie of whimsical visages.

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

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

Bad farming practices caused this unnatural natural wonder.

Like Mars, but much closer.

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

A grassroots community effort in the 1970s led to the creation of this beautiful garden full of delightfully whimsical exhibits.

An impressive collection is dedicated to the legendary beast.

Incredible miniature towns and buildings created and decorated with thousands of tiny rocks.

This mysterious twin turboprop Grumman G-159 covered in graffiti has spent a decade and a half abandoned.

Museum preserving torture methods from the past.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

The highway's southernmost spot is a beloved local attraction.

A historic presidential getaway on the continental United States' southernmost island.

An idyllic swimming pool tells the tale of Hemingway's trouble with women.

"We Seceded Where Others Failed."

The island residents are known for taking their quirky sense of humor with them to the grave.

A monument celebrating the idea of reaching inaccessible places.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.