The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

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

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

Large collection from the 3rd millennium BCE.

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

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

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

The hallucinogenic center of the ancient world.

This communist country can still appreciate its fragrant past.

Neo-cave art on the macro scale.

After the Cuban Revolution, the famous rum company had to leave their swanky headquarters behind.

No one knows the meaning behind this giant sculpture of a nude woman with a fork riding a rooster in Havana.

The house that birthed The Old Man and The Sea is now a museum devoted to the old man who wrote it.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

A colorful narrow alley in Cuba is full of street art and sculptures made of found objects.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

One of the world's tallest statues is also one of its most hated.

A sculpture park of the tossed aside relics of the USSR, from Stalin to a massive Soviet emblem.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

A rococo retro-futurist future-rustic vernacular between yesterday’s tomorrow and the future that never was.