Wander among free-roaming storks at the sanctuary that helped save them from local extinction.

The castle was reconstructed to fit Kaiser Wilhelm II's romanticized vision of the Middle Ages.

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.

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

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

Indents in the pavement are all that remain from a grisly death machine in Paris.

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

The first green space constructed on an elevated viaduct.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

The celebrated eyesore created by starry-eyed sweethearts.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

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

A series of abstract, silly sculptures represent the works of a great modern classical composer.

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

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

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.

Cozy basement bar sports an inventory of over 2,000 beers.

A little sculpture with a large wardrobe.

This memorial museum chronicles the apocalyptic destruction of the First World War.

Museum in a swimming pool where the water still flows.

Tables of secondhand books fill the inner courtyard of this 17th-century stock exchange.

This triumphal arch celebrating the Sun King's conquest of Lille is a masterpiece of military architecture.