400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

A large stone map of Arkansas awaits visitors to its highest point.

The only diamond mine in the world where you can keep what you find.

In Paris, Texas they have their own Eiffel Tower, it just has a cowboy hat on it.

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

This family cemetery is a reminder of a smallpox outbreak in late-19th-century Texas.

A mythical chimera first sculpted in 1936 as a mix of the main animals of Texas livestock.

A "Texanic" (gigantic Texas) collection of Art Deco architecture at Dallas' historic Fair Park.

This downtown Dallas art installation is always on the lookout.

This strategically-placed fountain creates the magnificent illusion of mustangs galloping across a river.

The "world’s largest honky-tonk" also has its own indoor rodeo arena.

A modernist landscape of water and sci-fi concrete.

The highest point in Texas is capped by a big silver pyramid.

Steep canyon walls hide a forested oasis in the West Texas desert.

A cave's rare beauty held a cavernous secret hidden underground.

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

The Grand Canyon of Texas.

These half-buried combine harvesters just off Route 66 are an homage to the Cadillac Ranch.

A pair of giant legs paying homage to a poem, a king, and it would seem, socks.

A time-capsule monument reminding future generations of the importance of efficient and effective use of natural resources.

This constitutionally sound Muffler Man harkens back to the days these attractions were a must-see.

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

The top of a giant mesa, just outside of Amarillo, appears to float in the sky above.

A small car graveyard sits in the shadow of the famous Cadillac Ranch.