Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

This two-room shotgun shack in Tupelo is the birthplace of a King.

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

Trace the history of writing at this unusual North Carolina destination.

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

Practice your Dirty Dancing lifts in the manmade lake where Johnny Castle himself did.

All that remains of this small town is its mass grave and a myth of a voodoo priestess who predicted its demise.

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

One of the longest water bridges in the world was built over a supposedly haunted swamp in Louisiana.

The uniquely-designed winter home and sculpture studio of Anna and Archer Huntington.

Step back in time on this preserved 1800s farm.

Enormous lake at the bottom of a unique cave system.

One man built this shrine in the 1970s to pay tribute to a miracle he had witnessed.

Some North Carolina Cherokee have been keeping their history alive for decades with a single play.

Amazing pre-Civil War ruins alongside a shallow, rocky river that hosts beautiful (but endangered) lilies.

Mysterious library of an infamous financier and spiritual seeker.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

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

This vast kitty-themed collection illustrates the history of human-cat interaction.

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

The oldest bridge in South Carolina may have been designed by the same man who created the Washington Monument.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

The stone labyrinth in this New Orleans city park was laid to symbolize healing in the wake of Hurricane Katrina.

One man's extraordinary topiary garden in a small South Carolina town.