A natural rock formation believed to be a cure-all.

An emerald-green grotto just a short trip from Austin.

This beautiful grotto is one of those places where you can't believe you're just outside Austin.

An immense cave that has served as an outlaw's treasure trove, an underground dance hall, a nuclear fallout shelter, and much more.

Civil War dumping ground for the bodies of terrorized Union sympathizers.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

There are no bodies inside these stone coffins. And there never were.

Home to a seasonal waterfall and swimming hole in the Ouachita Mountains.

You can dig up your own crystals in the quartz capital of the world.

Foragers once flocked to this big beautiful bayou to hunt for pearls.

Bad farming practices caused this unnatural natural wonder.

Since it formed millions of years ago, this cave system has been a sacred burial ground, a Prohibition-era speakeasy, and the center of an amusement park.

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

One person's lost luggage is another person's treasure.

148 feet long and in the middle of a verdant forest.

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

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.

This historic general store still operates much as it did in the late 1800s.

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

A 1980s tour bus that traveled millions of miles to facilitate a superlatively rigorous performing career.

Florence’s mother built a stairway down to her daughter’s coffin so she could comfort her during storms.

A dramatically eroding canyon thousands of miles from the desert.

Believe it or not, this is the final resting place of the man who created the Odditorium.

Instead of fruit, the branches of this tree are brimming with hopes and dreams.