The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

Just a man taking his prehistoric pet for a stroll.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

Legend has it this historic port was a popular hideout and smuggling spot for pirates.

This small primate research island is teeming with playing, fighting wild monkeys.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Once a year, thousands of naked cyclists flood the streets of a Seattle neighborhood.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

One man's homage to the orange as realized through a long-term folk art labor of love.

A park filled with vibrant mosaics created by more than 300 folk artists.

There is an unmarked red button hidden over Houston's Buffalo Bayou that is just begging to pushed...

A private collection of massive steel monsters guarding a Texas pipe works.

At the "Garage Mahal" in Houston, car culture is about more than just driving.

This feline raises a friendly paw at drivers barreling toward the freeway.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

A geological mystery on Camelback Mountain.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

When life gave this firefighter a forest fire, he made a rough-hewn sculpture park using a chainsaw.

After the attack on Pearl Harbor, rocks and fossils from every U.S. state were collected into a pyramid of national unity.