Sokushinbutsu - Buddhist ritualistic self-mummification - For 1000 days the priests would eat a special diet of nuts and seeds, while taking part in rigorous physical activity that stripped them of body fat. They ate only bark and roots for another 1000 days & drank poisonous tea made from the Urushi tree. This caused vomiting & a rapid loss of bodily fluids & made the body poisonous to maggots. The monk would then lock himself in a stone tomb where he would not move from the lotus position.
Most of the rooms were to be used for guests -- guests that would never be seen again. Evidence would later be found to show that Holmes used rooms as "asphyxiation chambers", where his victims were gassed. Other chambers were lined with iron plates and had blowtorch-like devices fitted into the walls. In the basement, Holmes installed a dissecting table and maintained his own crematory. There was also an acid vat and pits filled with quicklime, where bodies could be conveniently disposed of.
As surviving victim of The Angel Of Death, Josef Mengele, Alex Dekel later stated: "Mengele ran a butcher shop - major surgeries were performed without anesthesia. Once, I witnessed a stomach operation - Mengele was removing pieces from the stomach, but without any anesthetic. Another time, it was a heart that was removed, again, without anesthesia. It was horrifying."
At Auschwitz, Mengele did a number of twin studies. After the experiment was over, these twins were usually murdered and their bodies dissected. He supervised an operation by which two Gypsy children were sewn together to create conjoined twins; the hands of the children became badly infected where the veins had been resected. Mengele was almost fanatical about drawing blood from twins, mostly identical twins. He is reported to have bled some to death this way
The Pear of Anguish - brutal instrument used to torture women who performed abortions, liars, blasphemers & homosexuals. The pear-shaped instrument was inserted into one of the victim's orifices: vagina for women, anus for homosexuals & mouth for liars & blasphemers. It consisted of 4 leaves that slowly separated as the torturer turned the screw at the top. The device would tear the skin at the very least or expand to mutilate the victim’s orifice. It could dislocated or break the jawbones.