In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

A Saint Nicholas-themed ghost town in the Mojave desert.

An homage to everyone's favorite prehistoric cartoon family.

See massive fossils that are over 200 million years old in northeastern Arizona.

A reproduction of earth's many biomes.

A self-built castle made by a mysterious man.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

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

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Rippling sand dunes frozen in the Arizona rock.

The remains of the first public diamond mine in Arkansas.

This one-room schoolhouse in rural Arkansas dates to the 1920s, but looks like it could be the 1820s.

On the side of Arkansas' Great River Road stand the remains of a forgotten World War II POW Camp.

This quirky Arkansas wax museum does not shy away from the macabre and the grotesque.

Three markers installed over the course of 140 years mark the point where Arkansas, Missouri, and Oklahoma converge.

This historic bridge has weathered fires and floods and still stands, now abandoned, where it has stood since 1874.

An abandoned early-20th-century boomtown sits within the Calico Rock city limits.

The Old Mill shown in the opening credits of “Gone With the Wind” is actually fairly new, and was never a mill at all.

The final remnant of the Arkansas zinc industry is this historically protected ghost town.

A mysterious light floating in the trees of Arkansas may be a piezoelectric effect.

A curiosity-seeker's paradise set inside a three-story historic school house.

Visitors to this Kentucky homestead turned museum are immediately transported back to the Antebellum south.

This museum of miniature displays provides a journey through early American history.

One of the greatest boxers and humanitarians to ever live chose his hometown as his final resting place.