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

Go surfing on this urban wave, "hacked" by local surfers.

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

Buy raw milk from a 24/7 vending machine or pick up tomb candles at this local market.

When this monument to Slovenia's national poet was erected, it's said to have sparked the ire of nearby church authorities.

A whimsical bridge adorned with decorative dragons.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

Stockholm's narrowest alley is barely over two feet wide.

A plaque marks the house in Stockholm where the French philosopher René Descartes lived up until his death.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

Stockholm's deepest subway station is also a stunning ecological wonder.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

Museum dedicated to the terror regimes of Hungary.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

Once the home of a hermetic monk, this cave now houses a small church.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A memorial to 350 people burned at the stake for witchcraft.

A 10-meter totem pole stands as a tribute to Seattle’s sister city of Bergen, Norway.

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

This student-run nightclub was originally a World War II bomb shelter.