Enormous lake at the bottom of a unique cave system.

Final resting place of one of the classic authors of horror literature.

This fairy tale-themed amusement park is now abandoned, and childhood metaphors abound.

The exact whereabouts of this surreal cabinet of curiosities are rarely the same place twice.

Toy museum in a former tavern is the expression of one man's life pursuit of the aesthetic power of cartoon imagery.

The eccentric mansion of one of the most popular horror authors of modern times.

Expertly restored pinball machines as far as the eye can see.

Birthplace of America's first documented serial killer.

The New England cabin where an infamous British occultist conducted experiments in "magick".

Conjoined twins Daisy and Violet Hilton were stars of the vaudeville circuit.

This North Carolina grave is the final resting place of the world's most famous conjoined twins.

Garden dedicated to native carnivorous plants and site of huge flytrap heist.

An engraved boulder marks the spot where Patsy Cline's life ended in a plane crash.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

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

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

Home of an evil witch famous within southern folklore.

A museum that houses the world's largest collection of ventriloquism dummies.

Outstanding collection of 19th century medical instruments includes a life-size figure cast from as many as 200 cadavers.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

The world's longest known cave system.

Headquarters of the legendary clairvoyant's readings, spiritual hospital, and massage school.

An overgrown collection of miniature buildings still stand as evidence of one couple's obsession with The King.