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

The legendary building that needed ghostly approval before being built.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

A 140-year-old castle with underground caves hidden in San Francisco.

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

Tucked in the back of this amazing antique store is an important piece of medical history.

World's first "penitentiary," meant to be humane, drove men insane.

Rippling sand dunes frozen in the Arizona rock.

World's largest collection of serial killer artwork and other macabre exhibits.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

This tiny home was originally a narrow alleyway.

Fluffy and friendly alpacas nestled against the border of the beautiful Connemara region.

Shop for books in the New Orleans house where William Faulkner once lived.

In the Valley of Morelos lies a mysterious Olmec site with signs of jaguar veneration.

This striking royal residence is the largest Renaissance-style castle in Scandinavia.

Once the site of a Native American harvest festival, this humble clearing later played an invaluable role in the birth of jazz.

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

This "second" cemetery represents New Orleans' attempt to keep cholera at bay.

A 19th-century shrine covered with prosthetic body parts as votive offerings.

A 200-year-old building in the French Quarter that was to be Napoleon's home in the New World.

Imagine playing a version of Legends of the Hidden Temple, but with a distinctly Southern Gothic flare.

Storyville was New Orleans' historic red light district and hotbed of jazz music, sometimes referred to simply as "The District."