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

The ruins of a once-thriving sugarcane plantation that was burned in the Second Seminole War.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

This Transylvania County city is home to a rare white squirrel population that is descended from an escaped carnival animal.

Settled in 1696, abandoned after the Revolutionary War.

The eroded core of an ancient volcano is now accessible by a short hike.

To truly appreciate Detroit's landmark skyscraper, you have to step inside.

A blacklight journey through a celestial art exhibit.

An obscure public service from the U.S. government that redeems burnt, moldy, and soiled old greenbacks.

This rustic cabin, outfitted with gun slits, was once home to John D. Tewksbury, patriarch of the bloodiest family feud in American history.

A rusted metal giant pays tribute to Birmingham’s industrial past.

One man has spent decades faithfully constructing this unique brick and cinderblock castle.

Nearly 300,000 acres of wildlife, natural splendor, and a hidden ghost town have been designated a national monument.

The snowbirds here are circus sideshow performers.

One of only two pod-shaped homes designed by Frank Lloyd Wright.

A beautiful footbridge with over 2,000 glass sculptures along the walls and ceiling.

This old mining town, deep in the California desert, has a year-round population of one.

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

A giant open-air sculpture made of over 200 full-sized boats.

This abandoned lighthouse looks like a rusting oil rig, but has managed to survive a number of storms.

A secret fresh water spring for animals and humans alike hidden along the most famous road in the United States.

This park contains one of the largest concentrations of cedar glades, a unique and rare ecosystem.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.