This monument to a veteran of the Mexican-American War is one of only two in Manhattan that serve as an actual mausoleum.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

On the Irish coast, 18 members of the Howard family are eternally resting in an Egyptian pyramid.

This plaque tells the story of an event that took place in an imagined parallel universe.

The Church of the Annunciation was carved into the face of a cliff, just like the rest of the town of Haute-Isle.

Post office plaque commemorates local resistance to a cult invasion.

The location of the last stand of Charles Manson's doomsday cult.

This was once the center of the Birdman cult, and is now a World Heritage Site.

Water of undetermined depth has attracted rare fish and cult leaders alike.

An unfortunate geological resemblance to Satan has labeled this Pasadena gorge as a passage to the underworld.

A historic house devoted to the teachings of a 1700's prophetess and her mysterious box of revelations.

The crumbling ruins of this southern American fort have survived storms, war, and cults.

This ghost town was once a cult-like religious utopian settlement.

The secret skeleton of a murdered nun was discovered in this church basement, but the scandal doesn't end there.

This museum on a college campus pays tribute to the Arctic and to two explorer alumni.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

A pagan tradition of draping trees with rags eerily lives on.

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

This fantastical and eclectic English garden takes its inspiration from Egypt, China, the occult and more.

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

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

The graves of a Connecticut family thought to have been plagued by a vampire.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This small collection of rare books was uniquely locked up for safe keeping.