Deadly scalding and one of the largest hot springs in the world.

These two delightful animal-shaped buildings host a visitor center and wool shop.

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

What looks like a normal building is really a hollow facade hiding a subway vent.

One of the last umbrella repair shops in Paris upholds the nostalgic art of umbrella making.

The historic Masonic Lodge in which the first-ever female Mason was initiated.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

A magical, macabre wax museum, beloved by locals, uses real artifacts to depict an assassination from the French Revolution.

How did a French journalist’s grave become the sexiest statue in the cemetery?

A subterranean shelter remains intact under a busy Paris railway station.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

One of the oldest masonic museums in Paris.

Beggars were miraculously "cured" of their fake ailments when they returned home to this 17th century Paris slum each night.

Saintly bones pressed into a wax effigy of a Catholic superstar.

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

A unrivaled and rather horrifying collection of wax dermatological models.

The largest medical and anatomical collection in France lies hidden from the public.

The history of radiation is on safe display at the foot of a radiation science laboratory.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

Statue of death tucked in the University of Medicine courtyard.

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

A surrealist timepiece by the artist of melting clocks.

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