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

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.

The stickered marker pinpoints where the only maintained road in the United States crosses into the polar region.

The ruins of a town wiped out by the second-largest earthquake in recorded history.

North America's first frozen mummified remains of an ice age steppe bison, the 36,000 year-old mummy named "Blue Babe."