Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

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

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

This massive underground salt mine now holds a sci-fi theme park in its depths.

The atmospheric road was never meant to be so creepy.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

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

Monuments don't get much more metal than these three giant viking swords planted in a Nordic hill.

The trials and tribulations of marking Poe's grave.

Remnants of a storybook amusement park hidden behind a strip mall.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

The greatest collection of New Orleans masking and processional traditions covering everything from Baby Dolls to Skull and Bone gangs.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

Ancient Greek oracle of the dead.

A mysterious collection of stones stand outside a small New England town.

This foolish Victorian sea fort was converted to a deluxe hotel.

Abandoned bridge hidden deep in the San Gabriel Mountains.

Civil War dumping ground for the bodies of terrorized Union sympathizers.

Why have you never heard of the second most popular tourist site in New York?

This natural French spring has been turned into a magical grotto by Roman and medieval constructions.

Once defending the city of New Orleans from invasion by sea, this fort faces an uncertain future.

The Home and murder site of the witch of Rehmeyers Hollow.