The ruins of this monumental city founded by the first Roman Emperor are strangely overlooked by most travelers.

Poseidon? No one seems to know.

The oldest olive tree in Greece has been bearing fruit for at least 2,000 years.

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

Cave on extinct volcano, once home to famous mathematician Pythagoras.

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

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

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

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.

A spectacular cave and a beguiling lake.

The hallucinogenic center of the ancient world.

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