Underneath one of the region's most historic roads lies the home of Plato's successor.

An often overlooked ancient site in downtown Athens with substantial history (and nature).

The ruins of an ancient fortification wall sit in front of and underneath this boutique hotel.

The ruins of this ancient fortification wall sit in the middle of a quiet, residential intersection.

Get hands on with the technological marvels of the Classical world.

Preserved portions of Athens's ancient defenses are on display in a subterranean parking garage.

These artifacts were discovered during the construction of the airport, with some dating back to the Neolithic period.

A preserved portion of an ancient Athens barrier is displayed in a hotel basement.

The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

This little Greek plateau is home to thousands of rustic, white-sailed windmills.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

The ruined doorway is a portal to the building's turbulent and torturous past.

Where commuters walk through remnants of an ancient Greek necropolis.

Large collection from the 3rd millennium BCE.

The ruins of an ancient Roman tomb hidden in the basement of a trendy clothing store.

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

An ancient octagonal weather station named for the eight Greek gods of wind.

The ruins of an abandoned medieval city where the last Byzantine emperor was crowned.

This ancient hydrological marvel is now the base of a modern outdoor cinema.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.

Giant marble phalluses on the sacred island of antiquity.

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

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.