Brain scans of modern listeners suggest that Aztec whistles sound like human screams, which may have prepared sacrifice ...
Described as the 'scariest sound of the world', this 500-year-old noise is still sending chills down people's spines. Dating ...
Ranging from a threatening hiss to a blood-curdling scream, the sound of the Aztec death whistle is as creepy as the ...
Many ancient cultures used musical instruments in ritual ceremonies. Ancient Aztec communities from the pre-Columbian period ...