The Church of the Annunciation was carved into the face of a cliff, just like the rest of the town of Haute-Isle.

The remains of 40,000 humans, meticulously stacked in a tiny churchyard shed.

This banal Parisian entranceway is not what it seems.

An abandoned beach resort in Normandy reclaimed by artists.

If they push on just the right spot, even the weakest person can move this titanic boulder.

One of the oldest masonic museums in Paris.

The world's largest reflecting pool is just two centimeters deep.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

Beggars were miraculously "cured" of their fake ailments when they returned home to this 17th century Paris slum each night.

This French castle is said to have once held the Holy Grail but is now a gorgeous mountaintop ruin.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

A well-preserved medieval village nested on a rocky outcrop and surrounded by a network of cliffs, natural bridges and canyons.

These quaint French houses dangle precariously over a precipice.

The Cimetière des Chiens et Autres Animaux Domestiques is one of the oldest pet cemeteries in the world.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

An antique curios dealer and hybrid taxidermist.

Two small chapels housed inside an ancient tree.

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

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

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

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

Indents in the pavement are all that remain from a grisly death machine in Paris.

The history of radiation is on safe display at the foot of a radiation science laboratory.

The largest medical and anatomical collection in France lies hidden from the public.