Add Yahoo as a preferred source to see more of our stories on Google. During ritual ceremonies, the ancient Aztec civilization used a “death whistle” — a haunting instrument shaped like a human skull.

When the Aztecs dominated central Mexico, a blood-curdling sound like a human scream played through a small whistle. Luis Aceves via Unsplash In cultures around the world, instruments have brought ...

Add Yahoo as a preferred source to see more of our stories on Google. Creepy Aztec death whistle Ranging from a threatening hiss to a blood-curdling scream, the sound of the Aztec death whistle is as ...

More than 100 human skulls have been discovered in the Huei Tzompantl, a macabre skull tower near an Aztec temple. (all images courtesy of the Instituto Nacional de Antropología e Historia, INAH) ...