A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

Where the high court feasted, frolicked, and high courtesans put their royal lovers' diamonds to the test.

Noirish green neon marks the location of one of the oldest private detective agencies in France.

Pitié-Salpêtrière was the dumping grounds for women who received the dreaded diagnosis of "hysterical."

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

Indents in the pavement are all that remain from a grisly death machine in Paris.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

A grotto-like lodge decorated with gilded mosaics, rocks and a noisy waterfall was the setting for the most sumptuous pleasure house of 1900s Europe.

A surrealist timepiece by the artist of melting clocks.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

A mechanized clock where a man fights off a dragon, crab, and rooster.

The oldest stone house in Paris was built by its most famous alchemist.

Architectureal fantasy quarter of Rome.

In the fictional world of Kcymaerxthaere, standing at this site just outside Vienna, Austria, the sky would have been found beneath your feet.

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

The largest Neolithic ruins in the world hide a notably clean prehistoric metropolis.

1513 Turkish world map, full of European state secrets and snarky commentary.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

A gleaming white and undulating tower marks the border between Georgia and Turkey.

This hunter-gatherer architecture is believed to be the oldest religious complex known.

Before serving as James Bond's Casino Royale, this Victorian-era spa catered to the world's elite.

An unusual number plate signifies the building's saucy past.

Skeletons, medical artifacts, and other obscure and precious treasures all displayed in a wooden pharmacist's cabinet.

This off-limits room in the National Library of France is home to a system of pneumatic tubes, once used to bring books to readers.