On top of a hill, this Catholic church overlooks the most Catholic island in Greece.

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

This church is dedicated to the patron saint of seafarers.

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

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

An important example of architectural history slowly decays in the city center.

This building displays the scars of the “Dekemvriana,” a dark time in modern Greek history.

This Byzantine Church was moved from Paris to Athens block by block.

This Ottoman-era church is hidden amid a busy tourist area.

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

These caves secretly held national treasures during World War II.

A Byzantine church containing the holy remnants of three saints sits atop the site of an ancient temple.

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

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

A crushed gate and giant bronze head serve as a reminder of Greece's fight for freedom.

This small museum once served as a royal hunting pavilion for King Otto Friedrich Ludwig.

A man's head is enshrined beneath a statue near the first building constructed for the modern Olympic Games.

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

A Byzantine-era church hidden in a wooded area below the Acropolis.

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

Where commuters walk through remnants of an ancient Greek necropolis.

Legend says this sacred tree was a gift from goddess Athena.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

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