The former Detroit House of Correction, in it’s last incarnation as a women’s prison was closed in 2004.
This thing is what they used to slam all the cell doors shut simultaneously – hence the term “slammer”
The more modern part of the facility includes several of these style buildings, which are more like dormitory style housing rather than bars like an animal cage.
This is the slot that they jammed your food tray through. Just like in the movies.
Guard towers for supervision, and in case of emergency, snipers nest.
Main lobby vestibule.