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

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

Historic medieval fortified city in southwest France.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

Pitié-Salpêtrière was the dumping grounds for women who received the dreaded diagnosis of "hysterical."

The first green space constructed on an elevated viaduct.

This museum houses an imposing skeleton army comprised of creatures great and small.

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

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

A haunting collection of the vanished and disappearing natural world.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

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

Two well-hidden huts let animal lovers spend the night among the bears, wolves, and other predators of the forest.

A decommissioned submarine base makes a great space for graffiti art.

A little sculpture with a large wardrobe.

Theme park featuring miniature replicas of European monuments.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

Climb inside an iron crystal magnified 165 billion times its normal size.

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

This seemingly random 30-foot statue of an oryx in Qatar's capital was a mascot for the 2006 Asian Games.

This fountain pays homage to Qatar's history of pearling, the primary industry before oil.