These ruins in Volvi were once at the intersection of the Eastern and Western Worlds.

This remarkable cave was discovered after a shepherd watched bees enter and exit through a small fissure.

Thousands of rusting train cars have been slowly falling apart on the edge of Greece's second largest city.

According to myth, Zeus himself was hidden in this cave to escape being eaten by his dad.

A cave network located at the southernmost tip of mainland Greece was once believed to be an entrance to Hades.

Hideout of thieves, monks, and goat-footed gods.

Giant marble phalluses on the sacred island of antiquity.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

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.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

The hallucinogenic center of the ancient world.

A spectacular cave and a beguiling lake.

Monasteries on rock pillars, once accessible only by frayed ropes.

A collection of items from a way of life that no longer exists.

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

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

Gigantic Romanian salt mines used to heal respiratory conditions.

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

No one knows who built this strange cave of worship or exactly why.

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

This Romanian village may have been drowned, but it is long from forgotten.

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

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