This massive blockhead sculpture hides an entire library.

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

A Gothic cathedral created from volcanic rocks.

The largest underground church in Europe.

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

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

Historic medieval fortified city in southwest France.

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

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

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

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

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

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

Two awe-inspiring globes from the reign of the Sun King hang from the ceiling of France's national library.

The narrowest street in Paris.

This banal Parisian entranceway is not what it seems.

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

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

Walk through spectacular aisles of hanging meat and wagon wheel–sized cheese at the world's largest wholesale food market.

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

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.