A staircase made of gravestones leads up to this church built into a giant rock.

This church is dedicated to the patron saint of seafarers.

This building was once the most magnificent mansion in Nafplio.

This legendary city has been a tourist attraction for centuries.

The historic building has preserved human organs, unusual hexagrams, and scars from a political assassination.

Public water fountains built during the Ottoman Era still stand throughout this seaside town.

This 18th-century former mosque held the first Hellenic Parliament.

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

This cave complex might provide a link between the Neolithic and the Classical Greek period.

Ruins of a 13th-century fortress perched above a breathtaking Mediterranean bay.

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

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

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

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

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

This historic structure has been used as a mosque, a barracks, a prison, a school, and a bakery.

Legend says it was constructed with the destroyed pillar of an ancient Greek Temple.

View the ancient remains of buildings and the ancient "River of Hades" before hopping on a train.

This striking sculpture of Icarus honors Greece's fallen flyers.

The hallucinogenic center of the ancient world.

Where commuters walk through remnants of an ancient Greek necropolis.

An ancient Greek monument and a Byzantine church coexist inside this cave.

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

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