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

A wonderful museum dedicated to the local straw hat industry.

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

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

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

One of the largest caves in the world open to the public.

The walls of this medieval church are covered with perfectly preserved frescos, including a pristine example of the Dance of Death.

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.

The "dragon babies" of southeastern Europe.

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

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

The oldest arboretum on the Dalmatian coast doubles as the gardens of Kings Landing in "Game of Thrones."

Now harmless, this looming post struck fear into the heart of medieval troublemakers.

This Croatian computer club features such gaming relics as the infamous Virtual Boy and an 8-bit Pacman machine.

A forgotten monument to Yugoslavian freedom.

Now abandoned, the world's first torpedo factory is crumbling into the sea.

A tower marking the spot where Yugoslavia began its resistance against the invading Nazis stands neglected, but not quite forgotten.

When Croatia became independent of Yugoslavia, the splintering governments left behind these concrete tunnels.

The now-overgrown beach resort was once frequented by Yugoslav military elite.

Croatia's "hairy stone" fortress is one of the most well preserved Istrian castles.

Croatia's towering concrete blossom grows from the site of a World War II concentration camp.

Longest fortress system anywhere in Europe.

This truly palatial work of Communist-era architecture now sits crumbling on a Croatian beach.