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

Dive for drinks at Croatia's first and only underwater winery.

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

Once a state-of-the-art tuberculosis treatment spa, these ruins are now ruled by paintball players.

A musical instrument played by the sea.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

An ethereal glowing blue ocean cave in Croatia.

This picturesque medieval monastery guards a small trove of historic treasures.

Fall down the rabbit hole into a surreal journey of human consciousness "from ass to soul."

The skeletal frame of a decommissioned gas-pumping station offers breathtaking views of greater Berlin.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

Started as a kitchen garden, now the second largest botanical garden in the world.

An eerie, derelict amusement park in Berlin.

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

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

A bus with a butt and biceps to put Olympic athletes to shame.

The deepest sinkhole in Central Europe comes with a grisly tale and an unusual nickname: “The Stepmother Abyss.”

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

This former quarry is now a picturesque gorge that hides a sunken lake.

The world's greatest slide descends 18 stories from this looping mountaintop viewing platform.

Bohemian paradise covered in majestic forests.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

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