Gladiators once walked this ancient, subterranean passage.

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

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

Temple complex that once housed the famous statue of Nike.

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

Local lore says two enemy dragons live within these breathtaking mountain lakes.

The ruined doorway is a portal to the building's turbulent and torturous past.

Large collection from the 3rd millennium BCE.

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

The ruins of an ancient Roman tomb hidden in the basement of a trendy clothing store.

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

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

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

Monasteries on rock pillars, once accessible only by frayed ropes.

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

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

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

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

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

Where commuters walk through remnants of an ancient Greek necropolis.

Poseidon? No one seems to know.

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

An autonomous republic of Orthodox monks.

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