Step inside Lucy, the world's largest "elephant."

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

A storefront museum in Asbury Park honoring the Jersey Shore’s deep history of mystery—including the Jersey Devil.

How this Pine Barrens hill got its name is uncertain, but on a good day the view from the fire tower is crystal clear.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

The site of one of history's most indelible and horrific tragedies.

Take a stroll through the hellish grotesques of Hieronymus Bosch in this elaborate Netherlands church.

A small square plaque marks a failed assassination attempt that could have changed history.

This small Bavarian graveyard is filled with empty graves for German soldiers lost during the World Wars.

This skeleton-filled altar piece served as a backdrop to one of the most iconic scenes in "The Sound of Music."

American soldiers discovered Europe's best one-liner at the end of World War II.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

Walk 2,300 feet above the ground on the "Troll's Tongue."

The last fully functional fortress of Germany's World War II Atlantikwall.

Norway's oldest cathedral still in use.

Research station devoted to mysterious floating lights seen in a Norwegian valley.

A serpentine highway twists and turns over the treacherous Norwegian Sea.

The world's northernmost aquarium looks like it has fallen over.

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

This giant boulder is pinched over a 1000-meter abyss by two mountains.

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

Pittsburgh's literal underground railroad.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.