The Cell of Maximillian Kolbe
This cell was where the Catholic priest (now a Saint) was starved to death along with several other prisoners after he volunteered to take one prisoner's place. That prisoner survived the camp and spent the rest of his life testifying about his experiences and his encounter with Kolbe. It is also interesting to note that before his imprisonment, Kolbe was a missionary to Japan where he founded a monastery near Nagasakia which amazingly, survived the atomic bomb.