Southern Italy's spinning top village.

This seaside Italian village doesn't just look Escher-esque, it actually inspired the mind-bending artist.

A beautifully eclectic mix of architectural styles.

The spectacular and eerie moss-covered grave site of 19th-century Belgian merchant.

The oldest cemetery in Belgium.

Christ's blood allegedly preserved in a Belgian town.

A little-known ruin with a convoluted history and a fascinating latrine drainage system.

A perfectly running 230-year-old silver automaton and music box.

This enormous secondhand bookstore inside a Victorian train station sparked the "Keep Calm and Carry On" craze.

The sign at the garden gate reads: “These Plants Can Kill.”

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

The view that inspired the scenes of Dracula's first landing in England.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

These planks were originally installed to hold the dead.

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

This network of narrow, medieval passages has the most delightful name.

The only remaining collection of flayed figures made by French "madman" Honoré Fragonard.

A melancholy jester sits on the grave of a famous 20th-century ballet dancer and choreographer.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

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

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

A unrivaled and rather horrifying collection of wax dermatological models.

A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.

One man's quest to fix his toilet unearthed over 5,000 artifacts spanning more than 2,000 years of history.