A rare chance to ride one of the few continuous elevators still in operation.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

"In the Dark" Restaurant in Paris offers dinner in complete darkness.

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.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

A surrealist timepiece by the artist of melting clocks.

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

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

Paris' linguistic guide to the international language of, yes, love.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

Notorious artist squat renovated into legal studios.

Abandoned railway line circling the city of Paris.

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

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

Slaughterhouse Five opens its dank doors to fans of Kurt Vonnegut.

What was once thought to be a wellspring of unicorn bones is actually just a prehistoric burial site.

This conical hill was built as a testing ground for an engineer known as the Glider King.

A long spiraling walkway winds through the woods, and around a copper beech tree at the center.

No need to strap in for a "ride" on this walkable roller coaster.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.