This statue of a falling man commemorates a teenage martyr of the Hungarian Revolution.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

This Croatian fairytale castle is slowly falling apart thanks to years of neglect.

Where the lovelorn find a home for their sentimental keepsakes.

An ethereal glowing blue ocean cave in Croatia.

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

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

This historic black and white monastery is one of Bulgaria's architectural jewels.

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

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

Poseidon? No one seems to know.

This town named for the ancient God of War is home to fewer than a thousand people, but it's the birthplace of the Greek Revolution.

Replicas of Apollo's leonine stone guard cats still line a sacred row in Greece.

Giant marble phalluses on the sacred island of antiquity.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

An ancient church on a tiny island covered in stone bible stories has controversially been turned into a museum.

An abused and forgotten metropolis, abandoned for centuries.

A striking public sculpture representing the period of martial law in Communist Poland.

A stone marker and sculpture in the city of Riga stake a claim for the very first community Christmas tree.

A completely underwater art museum sends a stark message about humans' impact on the environment.

The spiral staircase hidden inside this giant Parisian column was likely built for Catherine de Medici's astrologer.

135 bronze medallions mark a French meridian line which once rivaled the hotshot Greenwich timeline.