This building served as the first customs house in modern Greece.

This legendary city has been a tourist attraction for centuries.

Built by the Ancient Greeks, this chariot bridge is still in use today.

These ancient ruins hide in plain sight next to a dessert shop.

Preserved portions of Athens's ancient defenses are on display in a subterranean parking garage.

Scars of this building's past life as a violent prison still cover its walls.

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.

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

The historic building has preserved human organs, unusual hexagrams, and scars from a political assassination.

According to legend, this cavern holds the passage that Persephone used to travel to and from the underworld.

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

This building was once the most magnificent mansion in Nafplio.

Public water fountains built during the Ottoman Era still stand throughout this seaside town.

Modernist design and funerary customs meet Spartan traditions in this one-of-a-kind graveyard.

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

This building displays the scars of the “Dekemvriana,” a dark time in modern Greek history.

A former military hospital is now used to study and preserve artifacts of the Acropolis.

Where commuters walk through remnants of an ancient Greek necropolis.

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

An ancient Greek monument and a Byzantine church coexist inside this cave.

The only surviving choragic monument is a trophy awarded in 334 BC for the winning dramatic chorus.

The ruins of an ancient fortification wall sit in front of and underneath this boutique hotel.

The ruins of an ancient mansion sits in front of and underneath a contemporary art gallery.