A subterranean shelter remains intact under a busy Paris railway station.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

A mechanized clock where a man fights off a dragon, crab, and rooster.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

A museum of carnival attractions where you are invited to ride the rides.

This massive library holds what was once the largest book collection in the world.

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

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

These mysterious mazes carved on the rock may be up to 4,000 years old.

A 6th-century stone lies at the site of the mythical battle waged between King Arthur and his nemesis Mordred.

A unique waterfall that some believe attracts the fairfolk.

The largest greenhouse in the world is home to over one million types of plants.

400-year-old garden, restored to beauty.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

A winding medieval path was used by mourners to carry their dead to the nearest church.

Each year this small English village becomes overrun with outlandish straw men.

The dramatic remains of an abandoned farmhouse sit high on the edge of a remote hillside.

WWII artifacts, including the building itself.

A steep and winding road in the Yorkshire Dales passes by these deep natural potholes.

England's largest white horse isn't even white.

A dramatic sculpture high up in Yorkshire with vistas on an industrial scale.

Astonishing rock formations dot the Brimham Moor landscape.

A long, winding trek rewards you with a gorge so captivating it inspired a painting in the Tate.