The brazen bull was a torture and execution device designed in ancient Greece.
The condemned were locked inside the device, and a fire was set under it, heating the metal until the person inside was roasted to death.
The head of the bull was purportedly designed with a system of tubes and stops so that the prisoner’s screams were converted into sounds like the bellowing of an infuriated bull. Phalaris is said to have commanded that the bull be designed in such a way that its smoke rose in spicy clouds of incense.