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

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

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

The Grand Canyon of Texas.

These waterfalls can be twins or triplets, depending on how much it's rained recently.

This water tower slanted at an uncomfortable angle off the old Route 66 was an ingenious marketing ploy.

A beautiful South Korean gate and garden in Little Rock honors American Taekwondo.

A wacky, UFO-shaped house in a suburban neighborhood.

In the Ozarks, a waterfall shoots out from a glorious hole.

Welcome to a starkly beautiful sanctuary where the buffalo roam.

Two gushing waterfalls of hot spring water within a block of each other.

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

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.

An immersive art experience built by local arts collaborative, Factory Obscura, in the building formerly known as The Womb, a psychedelic arts center founded by the frontman of the Flaming Lips.

The largest cattle market on earth holds live auctions open to the public every week.

A store full of vintage and indie toys designed to bring out the kid in even the crustiest of adults.

Controversially claiming the title of world's biggest bass drum, UT's Big Bertha was once made radioactive by the Manhattan Project.

Collection of skeletal systems from the "world's leading supplier of osteological specimens."

A historical house furnished with authentic pieces from the Victorian period.

A peculiar forest that was handcrafted for government experiments.

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.

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

Where Santa Claus held up a Texas bank and started a statewide manhunt.