The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

This hidden green space is the city's second largest conservatory.

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

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

This eye-catching roundabout sculpture commemorates one of England's best World War II-era "shadow factories."

Archduke Ferdinand II's collection of rare objects is considered one of the oldest museums in the world.

The longest canal aqueduct in England was built without a plan to get water past the moving boats.

Follow the original medieval paths that wind through this intriguing section of the city.

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

Notorious artist squat renovated into legal studios.

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.

A striking 500-year-old mansion provides an unexpectedly sublime home for live deer and a menagerie of exotic stuffed animals.

Not quite the menace it once was, this monster still has some chops.

A Japanese concept restaurant that feels like a party thrown by the monsters in your closet.

A magical place that lets you play in and explore the world of Studio Ghibli.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

The first museum in the world devoted to sexual gadgetry.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

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

This small exhibition displays equipment and artifacts once belonging to the feared Stasi secret police.

This unique exhibit "Dialogue in the Dark" reverses roles as the visionless become guides and the sighted become ‘blind.’