Former hunting lodge of a duke who was an avid collector of impressionist works.

This bridge was constructed from the rubble of the infamous Bastille.

The narrowest street in Paris.

The oldest and smallest cemetery in Paris is only open to the public twice a year.

This little-known relic crypt holds stolen parts of a Roman Empress.

The headless bodies of more than 1,300 guillotined victims of the Reign of Terror are buried here in mass graves.

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

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

This banal Parisian entranceway is not what it seems.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

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

Hidden away in a modern library are the remains of one of the 18th century's most celebrated wunderkammers.

An off-the-beaten-path boutique stuffed with an eclectic collection of upcycled goods.

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

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

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.

The first green space constructed on an elevated viaduct.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

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.

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

Egyptian Revival movie palace abandoned for decades and restored in 2013.