One of the oldest medical collections in Europe focusing on rare surgical instruments.

A museum of carnival attractions where you are invited to ride the rides.

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

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

Abandoned railway line circling the city of Paris.

France's high-tech, future-themed amusement park.

This otherworldly French waterfall looks like its waters have turned to stone.

This narrow path was cut right into a French mountainside to feed the country's early naval expansion.

An ancient ossuary in Rouen.

Trek into the depths of the cave where 17,000-year-old paintings exist alongside 400-year-old graffiti.

Green labyrinth formed by a karstic maze hidden in a preserved oak forest.

Underneath a chalk hill in France lies what Hitler hoped would be the underground launching base for a devastating new weapon.

This Parisian gem is one of the most incredible ethnographic museums in the world.

The construction of a tram line unveiled hidden remnants of the old medieval city.

Dedicated to the history and culture of smoking, this small museum now includes a vape lounge.

Miles of man-made caves and tunnels are currently used for cultivating mushrooms.

One of the world's most complex timepieces.

Nicknamed the "Museum of Horrors," this French anatomical collection has been fascinating visitors for over a century.

A unique underground structure dating back to the 1st century BC.

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

This crumbling, graffiti-covered mansion sits tantalizingly within reach of the proletariat who frequent a public park.

A colossal sculptural lion built by the same man who designed the Statue of Liberty.

Walk through spectacular aisles of hanging meat and wagon wheel–sized cheese at the world's largest wholesale food market.

This ancient theater was once the home of fierce gladiatorial battles.