Before the wild and naked L.A. pool parties, the bunnies got fucked indoors throughout those cold Chicago winters! Up until Hef left the house there was a brass plate on the door that read "Si Non Oscillas, Noli Tintinnare," or, "If you don't swing, don't ring." So yeah, you know what went on here. The 3 bedroom, 3.5 bath unit in the heart of Chicago served as headquarters during the 60's and early 70's before it was donated to the Art Institute of Chicago in 1974. Good times.