A sprawling collection of books and manuscripts about ancient Greece that would have put their famed libraries to shame.

This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.

The only surviving choragic monument is a trophy awarded in 334 BC for the winning dramatic chorus.

According to legend, this cavern holds the passage that Persephone used to travel to and from the underworld.

The hallucinogenic center of the ancient world.

This legendary city has been a tourist attraction for centuries.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

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

This famous archeological mystery may be an ancient example of movable type.

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

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

Wandering this ancient burial place offers a glimpse of the afterlife in the fresco-adorned tombs of an ancient Etruscan civilization.

The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

A tree that defies gravity grows in an ancient ruin.

Italy's third-largest Roman arena gives a peek into the underground operations beneath the ancient spectacles.

Pompeii's less famous neighbor is still revealing her secrets.

Erotic art covers the walls of the largest ancient pleasure palace.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

The walls and streets of the ancient city are peppered with penises.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.