This Denmark theme park is part family attraction, part experimental archaeology project.

This neolithic stone grave has been altered and restored so often its now more neo than lithic.

A massive stairway that almost wasn't leads to one of Australia's most scenic vistas.

The largest arcade museum in the world chronicles the golden age of video games which ended promptly in 1987.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

This temple to the sturm and drang of Richard Wagner contains a dragon's cave and reptile zoo full of living "dragons."

The second-largest (of only two in the world) large particle collider is the underdog of experimental physics.

Buried beneath the New Mexico sands are believed to be millions of copies of Atari's E.T. video game.

This series of rope-style bridges brings visitors into a jungle layer that is usually reserved for birds and monkeys.

This neon blue river gets its color from a unique mix of bacteria and volcano minerals.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

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

One of the most remarkable caves in all of Iceland was created by a once raging river of lava.

Experience the life of an 1800's lumberjack at this interactive museum that is only accessible by railroad.

A small abandoned and abused cemetery that has become a magnet for ghost hunters.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

This cramped crevasse saw the entire population of its island suffocated inside its depths.

This tiny town features a tiny town that acts as a 3D snapshot of the town during the 1950's.

The world's oldest hologram gallery and the labyrinthine laser laboratory of a holography pioneer.

Inspired by a foil-wrapped potato, (seriously) the Markel Building has been deemed one of the 10 ugliest buildings in the world.

The second oldest anatomical theater is housed in a museum of curiosities.

This tiny patch of arid sand sits in one of the greenest states in the United States.

The music is over at the Ballhaus Riviera Ballroom, but the ballroom remains in haunting disrepair.