Archaeologists have discovered the ruins of an 800-year-old Aztec pyramid in the heart of Mexico City that could show the ancient city is at least a century older than previously thought.

Centuries-old codices from what is now Mexico hold a ... from a private family that had passed down the Aztec documents for ...

A turquoise-encrusted wooden mask from the Aztec civilization Where it is from: Somewhere in Mesoamerica When it was made: Between 1400 and 1521 Related: Book of Kells: A 1,200-year-old manuscript ...