Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

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

On a small Slovenian island, diners can mix and match a classic cake into dozens of sweet and savory flavor combinations.

The medieval "dragon" on an Austrian city's coat-of-arms comes to life in a fountain.

Be(w)ar(e) the moat around this historic Czech castle.

Inside the Šomoška National Nature Reserve exists a unique rock formation rarely seen in the world.

From cartoon characters to tiny tanks, a guerilla sculptor's little bronze statues are hidden throughout the city of Budapest.

Dine amidst exotic plants at this former royal greenhouse.

The hidden lair of an alchemist rediscovered in a 2002 flood.

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

A spherical "micro-nation" in the heart of Vienna.

A grumpy old water goblin guarding an old mill on the Devil’s Stream in Prague.

This ruined castle perched atop a rocky peak is a great place for a hike.

A mesmerizing landscape of 18th-century cellars carved out of the land.

Every part of this unusual home is built into the sandstone rock.

The 14th-century ruins are said to contain healing powers.

A Baroque mansion with ties to legendary magicians and alchemists.

Tall columns of volcanic basalt make up this improbable-seeming rock formation.

A massive 1830s industrial site once known as Czechia's "Iron Heart" has been transformed into a playground of science, technology, and art.

Enormous sandstone towers loom within a Czech forest.

A spiral staircase twists to the top of this unusual Czech lookout tower.

What looks like a crashed Zeppelin is actually a bright, airy reading room perched atop a modern museum.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.