This abandoned shopping arcade has new life as an art installation.

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

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

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

Savor sheep milk yogurt at the last of Athens' dairy bars.

Where commuters walk through remnants of an ancient Greek necropolis.

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

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

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

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

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

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

This medieval synagogue survived the Inquisition as a hospital and church.

Touching this little fossil embedded in the wall of a grand mosque-cathedral may make your wishes come true.

This enigmatic artifact is a rare depiction of an ancient Iberian noblewoman.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

The world's largest wooden structure.

A unique and controversial artifact of the early Turkish Republic.

A rare group of seven-century-old mummies preserved in astonishing detail.

A surprising and unconventional mosque hidden in the subsoil of Istanbul.

A charming beach town in Turkey captures all the colors of the rainbow.

These ancient ruins include a stadium dating back to 400 BC.

A well said to have belonged to Paul the Apostle and part of UNESCO Tentative list of World Heritage Sites in Turkey.