There are no bodies inside these stone coffins. And there never were.

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

The highest waterfall between the Rockies and the Appalachian Mountains.

This century-old roadside attraction is full of bizarre rock formations.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

From a canyon-like gorge, more than 20 million gallons of water emerge every day, while a smaller spring drips down, creating the illusion of an endless, gentle waterfall.

Away from the crowds of fishing enthusiasts, take a hike deep into the woods and journey into an eerie darkness.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

The remnants of an early automobile route across shifting sand dunes can still be found in the deserts of Southern California.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

One of the largest trees of its kind in California.

An inconspicuous footbridge beloved by San Diego locals.

A hulking remnant of Alaska's industrial gold mining boom in the 1920s.

An ill-fated attempt to grow wheat in the sagebrush steppe of northeastern Nevada.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

An abandoned mine serves as a stark memorial of when mercury was a valued strategic metal.

An abandoned munitions storage facility with a rich architectural history.

A ghost town now swarming with dozens of prairie dogs.

The ruins of an open-air theater built on this Georgia island in the 1970s.

This mansion on an island off the coast of Georgia once belonged to a 108-year-old heiress.

This dark, quiet forest on the outskirts of San Diego is dense with rumor and lore.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

This unique sanctuary invites you to interact with the beautiful birds.

The overgrown ruins of a once thriving World War I-era copper mine.