This historic building displays the remains of a victim of the devastating 14th-century plague.

It is still illegal to "quarrel" at this unlikely urban oasis built on top of an electrical substation.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

An unassuming London park is actually a pilgrimage site for modern clowns.

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

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

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

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

On Japan's Tashirojima Island, cats are king.

An eerie, derelict amusement park in Berlin.

An exquisite tunnel of cascading flowers.

A kaleidoscopic warehouse-maze of handmade neon signs.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

High-end antique collection housed in a centuries-old church.

A mineral spring that became all the rage in 17th-century England.

At this small museum, visitors can view artifacts from the only battlefield in London during the War of the Roses.

Eerily lifelike effigies stare at everyone who enters this sanctuary.

The burial place of an obscure North African saint was turned into a macabre body preservation factory for the 17th-century Neapolitan elite.