Forget banshee shrieks, werewolf howls, your ex’s voice or even the soft ‘plop’ of dropping your phone in the bath, here’s a noise that’ll really set your heart racing.
The Aztec Death Whistle, likened by some to ‘the scream of a thousand corpses’, is generally regarded as one of the scariest noises in human history.
Used during sacrificial ceremonies, it is understood...