Brain scans of modern listeners suggest that Aztec whistles sound like human screams, which may have prepared sacrifice victims for their journey to the underworld.

This story appears in the January/February 2017 issue of National Geographic History magazine. Where do babies come from? The Aztecs’ answer to the classic child’s question was that they came ...

Before Spanish colonization, Templo Mayor served as the religious center for the Aztec people. When Spanish conquistadors ... said it's fascinating to see the ancient ruins that are tucked away ...