Macabre astrological automaton clock dating to the late 1400s.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

Horrifically creative torture devices and shame punishments line the walls of this chilling museum.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

The prototype for all Nazi concentration camps.

The fairy tale castle of the "fairy-tale king."

Baroque celebration of the end of the Great Plague of Vienna.

Op-art architecture designed for happiness.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

Erotic art covers the walls of the largest ancient pleasure palace.

Ancient snack bar of the Roman Empire re-opened.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

Pilgrimage site for star-crossed lovers.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

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

Largest lake in Great Britain measured by surface area.

This skewed English house has looked like it's going to fall over for centuries.

A century-old tradition has culminated in a small but singular collection of feline effigies.