Circus cemetery for all the “showmen under God’s big top.”

One believer transformed a local curiosity into proof of Vikings on the Great Plains.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

The highest point in Oklahoma used to be a lawless outlaw's paradise.

A clear blue swimming hole with hidden caves, still unexplored.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

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

A master plumber has turned his love of art and toilets into a folk museum that's not taking the piss.

Three hundred years of preserved Spanish colonial history in San Antonio.

Over 50 historic windmills whir away at this outdoor museum.

A funhouse dummy that turned out to be a real life mummy, Elmer McCurdy is an urban legend come true.

This little slice of old Jerusalem in Oklahoma is the evolution of a century-old passion play.

American bison herd descending directly from a Bronx Zoo breeding program that saved the species from extinction.

Final resting place of Geronimo, Quanah Parker, and the first atomic gun ever fired.

Ruins of a Carnegie family mansion on Cumberland Island.

"X" marks the spot of an echo chamber in the middle of a plaza.

If all members were present at the table, a sixth of the world's wealth would be under the same roof.

The remnants of the fortress that saved Georgia from the Spanish still stand guard on their swampy island.

A museum and shop on Bourbon Street located in the French Quarter.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

New Orleans' famous cemetery, located on the site of a former race track.

A monument celebrating the idea of reaching inaccessible places.

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

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