4.
The Iron Maiden
Although the name doesn’t seem to hostile, the actual device is severe. In German it is known as the Eiserne Jungfrau and is a cabinent created of iron with a hinged front. It can encompass a human being. It has closeable opening in the front so that the torturer can interrogate the victim and either kill or torture them by piercing the body with sharp objects such as knives, spikes, or nails.