This monument to one of the largest science fiction games of all time bears the names of hundreds of thousands of players.

The oldest steel ship in Iceland has been beached for years and is now a rusting ruin.

This modern monument to pagan belief looks like it was transported straight from ancient times.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

A beautiful and classically designed villa, with an hourly infestation of monsters.

The Argonaute submarine was the French navy's pride and joy in the 1950's.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

Abandoned railway line circling the city of Paris.

The grandest stage for the world's foremost masters of invisible instruments.

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

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

An exhibition of preserved locomotives housed in a 1950s depot shows the history of Denmark's railway.

Hans Christian Andersen for the postmodern world.

Danish observation tower designed to look like a giant beer bottle.

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

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

Tiring of digging out the door to this church for every service, it was eventually abandoned to the sands.

Nearly 40 miles and 1,000 years of limestone mines under Denmark.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

Iron Age "bog person" preserved for over 2,300 years.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

A walkable map of the world, made from soil and stone by one man.

The vast chamber inside this abandoned cooling tower looks like something out of a sci-fi dystopia.