Mysterious mercury pools and mica sheets found at Teotihuacan spark wild theories—from ancient rituals to lost energy ...

Mexico City's urban sprawl is impossible to fathom, ranging from the ancient pyramids of Teotihuacán to some of the trendiest ...

A newly discovered altar buried near the center of the ancient Maya city of Tikal is providing fresh insight into the ...

Rocks from Greenland found on Iceland's west coast could link the late Roman Empire's fall to a spell of sudden climate ...