Five candy-colored villages on the Italian Riviera.

Stalactites and stalagmites in a beautifully lit cave.

A 16th-century horror show built in a lovely Italian garden.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

The bizarre home and sculpture garden of an eccentric artist.

This historic stone gate tower is now just a lonely relic in the middle of a swamp.

This abandoned church in central Lyon is missing its front stairs.

A 2017 crowdfunding campaign saved this historic castle from being destroyed.

A total of 22 tiny bridges cross this canal of the Yvette River, forming a unique trail.

Rows of multicolored bathing huts paint the sand dunes with pops of color.

A towering baroque basilica jutting out of the French countryside.

A museum dedicated to one of Paris’s most famous residents, tucked into a corner of one of the city’s most famous squares.

A tiny, forgotten park of surrealist sculptures in Angouleme.

Wall after wall of this French seaside neighborhood is intricately decorated with seashells and corals.

This crack in France's seaside cliffs once hid a sinister secret.

These colorful French islands spent a stint bootlegging booze during American Prohibition.

Personal garden filled with mosaics made of recycled garbage.

This building’s ghostly exterior reflects its former lives as a prison, school, and funeral home.

An unusual sand beach in the middle of a forest.

This tiny hotel perched atop a 50-foot tower really puts things into perspective.

An unsettling shrine dedicated to the ravenous beast that prowled 18th-century France.

This army of concretions is an unexplained geological phenomenon unlike anything else in the world.

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

The sunken structure looks like the victim of a catastrophic flood.