An old spa town in the mountains of Romania where, according to legend, the great hero Hercules once bathed.

This museum offers a journey back to the Belle Epoque era of Romania.

Check out engineering marvels of the past at this unintentionally retrofuturist museum.

The preserved arm of a third-century sorcerer is believed to have the power to lift curses and spells.

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

Once an opulent Art Nouveau hotspot, the Constanța Casino is one of Romania's most beautiful abandoned buildings.

This once-derelict building is now one of the most beautiful bookstores in the world.

A giant portrait of an ancient king looms over the river.

This building has two facades of clashing architectural designs.

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

"Unity, Creativity, Beauty."

Eastern Bloc nostalgia, anybody?

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

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.

Dedicated to the untimely death of American balloonist and parachutist.

An abandoned textile factory on the "island of crows" was home to Estonia's first workers' strike.

This abandoned office building is a lasting example of Soviet-era architecture.

During the Soviet era, the spire of this longstanding church was used as a radio transmission tower.

A unique sculpture calls the outside of this steakhouse home.

This stoic bronze soldier stands as a symbol of Russian sacrifice or Soviet oppression, or maybe both.

This former medieval prison now unlocks Estonia’s rich photographic history.

A medieval setting reimagined into a unique art alley.

This dizzying tower was built to better broadcast the 1980 Moscow Olympics.