A whimsical sculpture garden right out of a children's storybook.

Remnants of the Nazis' occupation of Denmark linger along the sand.

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

Built after WWII, the observatory site for the University of Copenhagen exhibits once world-class instruments.

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

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

An abandoned lighthouse awaits its destiny: being buried under shifting sand.

The world's largest maze is a nature park with nearly 200 decision points.

The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

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

A perfectly circular stronghold constructed in the 10th century is now a nucleus of Viking culture housing a museum, village, and reenactment of an epic Viking battle.

The bright red stripes streaking across the rocks are the star feature at this Icelandic waterfall.

Hans Christian Andersen for the postmodern world.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

Museum on earth sciences featuring a recreation of a famous curiosity cabinet.

Bored potato-guarding Nazis etched their thoughts onto a brick storage building in Copenhagen's Meatpacking District.

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

This black church sits alone among a field of lava rock.

The summer tourists on these cliffs are thousands of seabirds.

Two volcanic lakes in an enormous crater formed in a prehistoric eruption.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

This mountain fissure hides a secret path to a secluded mossy grotto within the rock itself.

A sulfuric martian landscape that looks far better than it smells.