Offal and flawless onion soup are on the menu at this restaurant that once catered to the workers of Les Halles.

For more than a century, revolutionary graffiti has marked the wall of a Parisian church.

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

The tombstone of an unfortunate explorer who disappeared in the Paris Catacombs.

Shop at the 200-year-old store where Julia Child stocked up on copper cookware.

Marie Antoinette and Napoleon Bonaparte were fans of this 200-year-old French chocolatier.

The remains of the medieval wall that once surrounded Paris with ties to the construction of the Louvre.

Grab a life-changing ham sandwich at this former horse butchershop.

The final resting place of the "father of special effects."

With a history of slaughter, feast, and famine, remnants of the pork industry decorate this area--even its church.

A 400-year-old church covered floor to ceiling in ex-voto offerings from the faithful.

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

The recovered bones of martyrs slaughtered during The Terror are on display in this church crypt.

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

An iconic and eccentric bar for "Manouche" Jazz music keeps expanding its space—and its influence.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

The curious underground history of keeping Paris clean.

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

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

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

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

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