Amsterdam's Red Light District leaves little to the imagination.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

The world's brightest bioluminescent bay.

On this Puerto Rican island, many abandoned naval ammunition bunkers sit open while a few have been padlocked by locals as personal storage.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

The rusted remains of a victim of Hurricane Ike.

A sinkhole known simply as "The Hole."

Uninhabited islet in the Caribbean is the sanctuary of giant lizards.

A 220-foot deep watery drop-off, filled with marine life.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

Three columns of volcanic rock shoot out of the ocean.

The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

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

This stunning concert hall has become a symbol of Iceland's national recovery.

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

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

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

This scenic Icelandic lava flow is named for a pair of Berserkers who were murdered, according to a famous Saga.

Cozy basement bar sports an inventory of over 2,000 beers.

A little sculpture with a large wardrobe.

Brussels' favorite peeing boy has a sister.

Sweden's oldest animated sign is still lighting up the skyline today.

Copenhagen's celebrated theme park and gardens.