The birthplace of the ferocious William the Conqueror, this castle is awash in medieval history.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

The narrowest street in Paris.

Fighting the British and making game shows for over 150 years.

Resting on a hill overlooking the coast, these medieval ruins look completely deserted save for their restored chapel.

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

One of the oldest masonic museums in Paris.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

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

The largest underground church in Europe.

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.

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

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

The oldest stone house in Paris was built by its most famous alchemist.

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.

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

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

A neolithic dolmen that was rebuilt after collapsing during the 19th century.

The excellent acoustics of this natural amphitheater made it a popular preaching spot for the founder of the Methodist Church.

Perhaps the only prehistoric monument with its very own public bus stop.

A unique waterfall that some believe attracts the fairfolk.

A treasure trove of astronomical, mathematical, and scientific instruments at Cambridge University.

This 11th century tower is said to be the oldest building in Oxford.