The Harlem Renaissance poet and activist wrote, organized, and hosted travelers in this Lynchburg, Virginia oasis.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

This kitsch eatery is chock-a-block with bric-a-brac.

This former prison is an Art Deco masterpiece with a past full of civil rights flashpoints.

This small museum gives visitors a chance to soak up the history of the "sponge capital of the world."

It turns out that a hurricane-prone beach is probably not the best place to house wild animals.

This spooky road cut through a mound of ancient coral might be haunted by a witch.

Jacksonville's highways rendered this century-old grammar school unusable.

A small strip of artistic displays is tucked away in a flea market.

This grand Spanish-Cuban restaurant has been serving customers for more than a century.

This former factory has been transformed into a technicolor wonderland, where dozens of local artists have collaborated to create a real choose-your-own-adventure experience.

Ruins of an old sugar mill sitting quietly next to a park in rural Florida.

A trek through the solar system here on earth.

These craggy limestone outcrops offer a glimpse at a unique piece of Florida geology.

These early tent-shaped grave coverings are unique to Appalachia.

Home of an evil witch famous within southern folklore.

Hiding behind a grocery store is a spectacular cavern carved as part of an old limestone quarry.

An enormous natural sandstone bridge in Kentucky.

River pirates, murderous bandits, and serial killers used this Illinois cave as their debauched hideout.

A subterranean haunt where wine and homemade biscottis are always on the menu.

In the Shawnee National Forest, amazing rock formations peer through the treeline.

An urban forest overtakes what was the greatest failure of utopic urban housing.

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

Come for the heirloom-corn whiskey, stay for the wood hats.