Noirish green neon marks the location of one of the oldest private detective agencies in France.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

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

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

Notorious artist squat renovated into legal studios.

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

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

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

Two stone columns flank the grand Venice square, but there were supposed to be three.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

A fake Transylvanian castle houses a cathedral of antlers.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

The romantic garden was the epicenter of the Hungarian art scene in the 1880s.

Museum dedicated to the terror regimes of Hungary.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A favorite with sightseers, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

The Bristol Camera Obscura housed in an ancient windmill.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

Hamburgers are intensely proud of their tunnel beneath the river.