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

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

The oldest stone house in Paris was built by its most famous alchemist.

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

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

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

These Finnish rapids have been attracting tourists for over a hundred years and are now released with the push of a button.

Quality time with reindeer in the stunning scenery of their natural Lappish habitat above the Arctic Circle.

An alien church provides much needed silence in the midst of a Finland shopping center.

This fantastical icy castle is built anew every winter.

Rent out a glass igloo to watch the Northern Lights like you live in the future.

Legend has this precariously placed rock was placed by giants. Science has another explanation.

This lake-bound geographical marker sits at the point where three European countries intersect.

This isolated structure beckons adventurers with sublime views of the Faroe Islands.

The largest lake in the Faroe Islands seems to be held hundreds of feet above sea level thanks to an optical illusion.

This remote island village was in danger of depopulating completely until a tunnel was built to connect it to the rest of the world .

This dizzying tower was built to better broadcast the 1980 Moscow Olympics.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

Man-made mineral caves house massive bat colony.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

Mysterious craters may have been home to an ancient cult.

A failed attempt to control drifting sands yielded a gnarled sylvan wonderland.

Mounds, rune stones, and a 1,000-year-old church, left behind by Denmark's first two kings.

This huge industrial sculpture looks like a UFO and a factory had a baby.