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

One woman's decades-long obsession with the "La Fée Verte."

This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

The artist and his brother are buried in a landscape straight out of a van Gogh painting.

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

This is what trains will look like after the zombie apocalypse.

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

A surrealist timepiece by the artist of melting clocks.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

This modern museum of Mediterranean culture is surrounded by a surreal concrete honeycomb.

This historic island prison holds one of the dungeons from the Count of Monte Cristo even though it is a work of fiction.

An often-shuddersome journey into a low-tech, robotic themepark.

A French library that makes sure its love of books is writ large... giant in fact.

Now a memorial, this factory was once used as a concentration camp for artists by the Vichy government.

A once-thriving hotel in the Swiss Alps couldn't compete with climate change.

Thousands of costumed dolls fill one of the world's creepiest museums.

Nearly every wall in this French villa has been "tattooed" by artist Jean Cocteau and other famous painters.

One architect's organic, human-centric design has been fully realized in this alien art house.

Sleep in a climate-controlled plastic bubble for the night.

Balconies that have a most unusual accent.

700 iron sculptures crammed into a Mediterranean park.

The immortal Hollywood star rests in peace in an unassuming Swiss village cemetery.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

A war-torn Olympic relic is being overtaken by graffiti and nature.