Tokyo’s only Vaudeville-cuckoo clock–steampunk-Victorian curio cabinet time piece.

One of the only spherical 19th century gas containers left today.

This patch of land is home to Sweden's largest burial mound, allegedly belonging to a mythical king.

This 2,000-year-old stone maze is one of the oldest in the country, but its purpose is still a mystery.

Few would expect the world's oldest preserved oil refinery to be found in Sweden.

A centuries-old copper mine that once provided two thirds of the world's copper supply.

A semi-sterile mutant birch that became Sweden's national tree.

Believed to be the country's tallest waterfall, the Njupeskär is actually much smaller.

The world's oldest individual clonal tree looks like a wimp despite standing tall for 9,550 years.

This collection of lurid religious statues tell the tales of a saint who stood down the devil.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

Rumors and legends of secret Nazi activities surround this eerily remote island mansion.

The 20-mile causeway that separates the Netherlands from the sea.

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

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

The "Prussian Versailles" that is as glorious today as when it was built.

A lover's walk between hilltop towns, decorated with graffiti love notes.

Five candy-colored villages on the Italian Riviera.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.