An underground city of salt.

Deep underground, the rusting remains of a German water pumping station from World War II.

The summer residence of a Spanish ambassador who brought viticulture to an impoverished region, sparking its transformation into one of the world's best wine regions.

This cutting edge museum details the history of skiing, from its ancient origins to its status as a sport.

In between two buildings in Ljubljana, medieval tunnel to nowhere.

This former railway facility is the oldest in Slovenia, and now houses a museum showcasing the history of steam locomotives.

This was the second largest mercury mine in the world and one of the oldest preserved mine complexes in Europe.

The costumes depict the Kurent, the star character of the annual Kurentovanje festival.

Apparently, Hell has waterfalls in Slovenia.

This small Slovenian town has become a magnet for microbreweries.

Nibble as you learn about Slovenia's longstanding tradition of making beautiful honey cookies.

The world's oldest grape-producing vine has survived four centuries of turmoil and even has its own anthem.

A crumbling World War I fort that is reached through a series of concrete tunnels.

The "dragon babies" of southeastern Europe.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

A miniature train-ride through Slovenia's largest cave system.

This abandoned Slovenian military barracks has become a punky-political art squat.

This one-time health resort was used by aristocrats around the world.

This massive subterranean fissure is known as the "underground Grand Canyon."

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

Fortifications built for a Soviet invasion that never came now sit abandoned in a losing battle against nature.

A 246-foot-high revolving restaurant rises unexpectedly from a forested Finnish hilltop.

If you visit Santa's village, you can get your passport stamped to show you crossed into the Arctic Circle.

Roughly 17 million letters to Santa have found their way to this Arctic Circle post office.