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

Archaeologists have discovered what they think are ruins of an Aztec pyramid razed by vengeful Spanish conquerors in what is now one of Mexico City's most crime-ridden districts.

Teotihuacan, with its Pyramid of the Sun, Pyramid of Moon and Temple of Quetzalcoatl, was one of the largest urban centers in the ancient world.

History buffs can learn forgotten secrets of Aztec society in the new two-hour special Lost Pyramids of the Aztecs, premiering tonight, June 28, at 8 p.m. ET/PT on Science Channel.

The Pyramid of the Sun might actually have architectural ties to the moon—the researchers observed that its northeast and southwest vertices align with lunar standstills or “lunistices ...

According to tradition, the Aztec god of the sun and war, Huitzilopochtli (whose name in Náhuatl means "left-handed hummingbird" or "hummingbird of the south"), commanded the Aztecs to leave their ...