BDSM, 1930s Style.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

Historic medieval fortified city in southwest France.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

The mental institution where Van Gogh created some of his most famous work now allows guests to walk in the artist's footsteps.

This natural French spring has been turned into a magical grotto by Roman and medieval constructions.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

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

A French valley with forests so lush it was nicknamed "the Small Amazonia of the Pyrenees."

A 14th century bridge built as a fortress, where the devil lurks on one of its towers.

Hundreds of hidden passageways weave through the old quarters of Lyon.

An icy lake tucked among jaw-dropping alpine panoramas.

A cave dwelling that was started by the Celts, expanded by monks, and finished by knights.

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

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

Ancient paintings known as the "Sistine Chapel of Cave Art."

One of the greatest maze designer’s greatest mazes.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

This banal Parisian entranceway is not what it seems.

Pitié-Salpêtrière was the dumping grounds for women who received the dreaded diagnosis of "hysterical."

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

A series of abstract, silly sculptures represent the works of a great modern classical composer.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.