The prototype for all Nazi concentration camps.

Historic medieval fortified city in southwest France.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

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

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

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

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

An Orthodox church built by the Royal Family for the Russian community exiled to the French Riviera.

This ancient theater was once the home of fierce gladiatorial battles.

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

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

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

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

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.

France's most famous cemetery, with some of its most curious tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

An ancient iron pillar in Delhi that seems to be rustproof.

Modest by day, illuminated majestically at sunset.

A blooming house of worship for the masses.