A remote hilltop covered in giant monoliths haunts the Brittany countryside.

This Corsican Neolithic site is full of pre-Roman megalithic structures that may or may not be penises.

One of the great treasures of Neolithic art lies within this carefully constructed pile of rocks.

A huge Megalithic chamber tomb located behind a cafe.

15,000 year old bison sculptures.

Exquisite examples prehistoric bas-relief carvings.

A unique underground structure dating back to the 1st century BC.

Figures of unknown origin carved into the surfaces of underground caves.

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

Beautiful carved tunnels.

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

The largest underground church in Europe.

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

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

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

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

Constructed thousands of years ago, these stone circles offer incredible insight into the lives of the people who built them.

The giant figure on the back of this turtle-shaped temple actually hides a memorial pendulum.

This giant seated Bhudda of Healing dates to the 1780s.

Founded over a thousand years ago, this shrine is said to be built on the site of a warlord's harem prison.

The divine septet of Japanese fortune gods are rendered in 1,000 year old wood at this peaceful site.

This giant bronze Buddha, the third largest in Japan, is the last in an ill-fated series of statues.

The largest volcanic caldera in Japan holds an entire city in its maw.

This sawtooth mountain range still bears the strangely lovely marks of its history as a medieval quarry.