An alchemist's "magic door" stands in the middle of a Roman park.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

An emporium for the weird, creepy, rare, and just plain gross.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

The site of the climactic scene from the classic horror film is now a historic landmark.

A beautiful 62-acre Catholic shrine and botanical garden.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

Eighteen miniature death-scene dioramas.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Venue for strange sideshow displays and musical acts.

A museum and shop on Bourbon Street located in the French Quarter.

A collection of haunted artifacts chronicles the career of the world's most famous paranormal investigators.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

A 16th-century horror show built in a lovely Italian garden.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

Continuing the tradition of the dime museum in style.

Home of an evil witch famous within southern folklore.

The oldest stone house in Paris was built by its most famous alchemist.

The sign at the garden gate reads: "These Plants Can Kill."

Where America's first doomsday cult awaited the end of the world.