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

Where commuters walk through remnants of an ancient Greek necropolis.

One of the greatest collections of coins in the world is housed in the former mansion of an archeological pioneer.

The only ancient site that remains on the south bank of the sacred Ilissos river.

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

The oldest cemetery of modern-day Athens blends the modern and ancient worlds.

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

Gladiators once walked this ancient, subterranean passage.

A sharp sculpture made of thousands of pieces of jagged glass.

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

This lesser-visited World Heritage site in Athens boasts an impressive ensemble of medieval gold mosaics.

These caves secretly held national treasures during World War II.

This sixth-century church housed an icon with eyes so beautiful legend has it they inspired the name of a Greek city.

Seventeen oak trees sprout from the roof and walls of this tiny chapel without any visual evidence of roots.

A somber memorial at the site where hundreds of prisoners and civilians were executed in the aftermath of World War II.

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

The nuns here cultivate silk to weave some of the finest scarves in the world.

The Greek War of Independence was declared at this medieval Byzantine sanctuary.

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

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

The historic tower houses of this nearly abandoned Greek town have been compared to the spikes on an iguana's back.

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

With its vaulted ceiling and gilded details, this University of Washington library would feel right at home inside an old palace.

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