The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

This massive library holds what was once the largest book collection in the world.

The world's largest collection of witchcraft regalia.

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

An ancient capital city that dates back 3,000 years old and harbors many surprises.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

A beautiful, dense forest in the shadow of Mount Fuji, with a tragic reputation.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

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

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

Hot springs monkey spa in the middle of Hell's Valley.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

These fantastically named natural pools look like something out of a Scottish myth.

The legendary building that needed ghostly approval before being built.

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

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

This faux-seedy Japanese arcade is made up to look like a maze of alleys straight out of a cyberpunk dystopia.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.