A literally moving statue of stacked metal giants just continually trying (and failing) to find love.

"Holy Wisdom" overlooks the city that became its namesake.

A vast Communist-era exhibition space in the Bulgarian capital.

A collection of art from Bulgaria's time as a communist state.

A striking symbol of the Bulgarian capital.

A flamboyant five-story building in Bulgaria resembles a crawling snail.

A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

This massive concrete sculpture is said to be the heaviest communist monument on Earth.

Bizarrely shaped rock formations in northwest Bulgaria come with equally bizarre legends.

An architectural marvel that spans the Arda River, and has stories of a haunted past.

These spooky and unusual stone formations create an underworldly landscape.

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

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

A pre-Hispanic pyramid in the middle of a tourist district in the Canary Islands.

An iconic and controversial ancient Iberian funerary urn with a hauntingly penetrating gaze.

Specimens collected by the author of "Lolita" and self-taught lepidopterist are exhibited in his childhood home.

The world's second-largest excavated hole.

Palace where the nearly un-killable Rasputin was murdered.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

Even drowned in an ocean of toxic waste, the remnants of this Romanian village stand tall.

A muddy alien landscape that is home to rare species of exotic plants.

This giant glowing "beanpole" adds much-needed pops of color to an otherwise drab power plant.