An enchanting work of outsider art, full of whimsical sculptures and carvings.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

Avant garde house of Pierre Cardin on the Cote d’Azur.

An aluminum skeleton brings Chinese mythology to the French shore.

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

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.

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

An icy lake tucked among jaw-dropping alpine panoramas.

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

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

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

Abandoned railway line circling the city of Paris.

Τhis feline monument commemorates fallen soldiers on a field that saw many, many battles.

A closer look at this somewhat faded hotel by the Corinth Canal reveals the architectural undertones of a genius.

A series of waterfalls create the illusion of perpetual rainfall in this hidden gorge.

A magical, if a bit tacky, 1960s castle conjures up medieval fairytales and Greek mythology.

The historic tower houses of this nearly abandoned Greek town have been compared to the spikes on an iguana's back.

Overlooking the harbor is a beautiful neglected mansion guarded by two Egyptian sphinxes.

This seaside sanctuary was once one of the most important religious sites for women in ancient Greece.

According to legend, this cavern holds the passage that Persephone used to travel to and from the underworld.

Ruins of a 13th-century fortress perched above a breathtaking Mediterranean bay.

This town named for the ancient God of War is home to fewer than a thousand people, but it's the birthplace of the Greek Revolution.

Temple complex that once housed the famous statue of Nike.