A marvel of technology a century ago, this disused power station now offers a lovely glimpse into the industrial design of the past.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

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.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

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

The ancient Greek Titan guards this massive dam holding a lightning bolt to symbolize electricity.

Romania's triumphal arch looks out over Bucharest.

Packed to the ceiling with antique taxidermy and hunting arms.

This bone-filled cave got its name after they found 140 bear skeletons inside.

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

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

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

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

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

Moss and stone turn this waterfall into an otherworldly liquid veil.

A small town Romanian cemetery filled with darkly humorous gravestones.

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.

This massive underground salt mine now holds a sci-fi theme park in its depths.

Rock carving created 1,300 years ago 75 feet off the ground.

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

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

The second-largest Jewish temple in Bulgaria was deserted after World War II, seized by the communist government and then abandoned again.