The largest Roman amphitheater in the Balkans once held over 20,000 people, but managed to lay hidden for hundreds of years.

A naturally beautiful, seemingly bottomless deep blue spring.

The ghost town where the villagers refuse to leave.

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

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

A spectacular cave and a beguiling lake.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

The oldest olive tree in Greece has been bearing fruit for at least 2,000 years.

A miniature desert appears out of nowhere on the lush isle of Lemnos, like something out of a Greek myth.

Cave on extinct volcano, once home to famous mathematician Pythagoras.

Dedicated to the god Dionysus, this theatre was used for both musical and theatrical performances.

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

This wrecked ghost ship has been rusting on a Greek beach since the 1980s.

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

This 200-meter-high waterfall marks the site of Achilles’s immortal baptism at the mouth of the River Styx.

The hallucinogenic center of the ancient world.

Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

This legendary city has been a tourist attraction for centuries.

After a catastrophic forest fire, a Greek artist transformed scorched tree trunks outside an old sanatorium into this haunting sculpture garden.

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

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

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

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

A memorial dedicated to a tragic event during the Axis occupation of Greece.