The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

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

Two small chapels housed inside an ancient tree.

A beautiful and classically designed villa, with an hourly infestation of monsters.

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

The famous winding walk at Chartres is surrounded in mystery and myth.

Historic medieval fortified city in southwest France.

A Gothic cathedral created from volcanic rocks.

The largest underground church in Europe.

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

An icy lake tucked among jaw-dropping alpine panoramas.

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

The only remaining collection of flayed figures made by French "madman" Honoré Fragonard.

This massive blockhead sculpture hides an entire library.

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

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

A lone cannonball remains lodged in the walls of the Hotel de Sens as a sober reminder of a revolution.

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

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

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

Science fiction's grandfather has a fittingly marvelous tomb.

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

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

One of the greatest maze designer’s greatest mazes.