These ancient ritual mounds are our best window into the culture of the ancient Mississippians.

Bad farming practices caused this unnatural natural wonder.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

The Jewish section of the famous Boothill Graveyard was abandoned for nearly 100 years.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Classy up your Big Mac with bow-tied servers and chandeliers at the world's fanciest McDonald's.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

This lakeside tower is the third attempt at getting a tourist destination to stick on the spot.

This beautiful Cape Cod beach offers dazzling views and an interesting historical footnote.

A monument celebrating the idea of reaching inaccessible places.

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

This legendary "evil" doll has been haunting the citizens of Key West for over 100 years.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A Wild West saloon that helped define a generation of psychedelic rock.

The arch that celebrated the completion of the Lincoln and Victory highways.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Ever wanted to can Spam?

Race through the maze, get your name on the sign.

A museum dedicated to the quirky and colorful world created by Springfield's favorite son.