The remains of a military communications outpost still stand on this Greek island.

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

This pink watchtower served as the seat of the Greek government after independence from the Turks.

The partially submerged ruins of a white marble quarry used in ancient Greece for over 1,200 years.

A former factory serves as a shrine to the industry that sustained Santorini for decades.

The Greek island's old British cemetery feels like a forgotten garden.

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

Every spring, locals see the shadowy figures of a ghost army of slain Greek soldiers descend upon this ruined fort.

This graffitied 19th-century building was a prototype of European industrial architecture.

The site where hundreds of Greeks were tortured by the Nazi secret police is now a cosmetics store.

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

This open air archeological site houses almost as much wildlife as it does classical religious artifacts.

Learn about the sweet, storied legacy of beekeeping in ancient Greece.

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

This 13th-century monastery chiseled into the side of a mountain is equipped with a bridge that can be lifted to protect against raids.

This famous archeological mystery may be an ancient example of movable type.

An abandoned Byzantine fortress and notorious prison.

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

One of the largest single-span stone-arch bridges in the Balkans looks like something straight out of a fairytale.

The ruins of this monumental city founded by the first Roman Emperor are strangely overlooked by most travelers.

This medieval "painted village" is famous for its geometric facades.

An alien landscape on the banks of the Aegean Sea.

A cave network located at the southernmost tip of mainland Greece was once believed to be an entrance to Hades.

In Chicago, a pizza-enthusiast has opened a museum dedicated to the history of pizza.