Mysterious rocks that ring musically when struck.

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

Where manatees are the snowbird vacationers in these balmy Florida springs.

Home to items never before seen by the public.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The fountain marks the area where hundreds of accused witches were burned at the stake.

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

A museum of carnival attractions where you are invited to ride the rides.

The fairy tale castle of the "fairy-tale king."

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."

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

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

The seamy, underground secrets of Portland's criminal past.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

Home of an evil witch famous within southern folklore.

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

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

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

Banksy gives themself artistic license with this piece of London street art.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

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

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.