These strange large stones served as a campsite and lookout post for generations of Native Americans.

This rare basilica nestled right in downtown Asheville is an architectural marvel, inside and out.

Parts of the civil rights movement unfolded in this historic eatery, helmed by the "Queen of Creole Cuisine."

The second oldest continuously operating bar in Louisiana.

The scuba diving training facility was named for the steam that rises from the cave's chimney.

Elvis's own personal tropical hideaway.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

An abandoned town is hidden in Great Smoky Mountains National Park.

This collection of odd proofs of concept is like taking a walk through the imagination of a Victorian engineer.

America's first nuclear-powered merchant ship is now a time warp to the atomic age.

A lawn full of retired spacecraft on display at one of NASA's first research labs.

The antique hotel still has a jail in the basement, though the cockfighting ring is long gone.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.