Alcatraz Federal Penitentiary, San Francisco, California
- Photo Credit: José Pestana / Flickr (CC)
Brushy Mountain State Penitentiary, Petros, Tennessee
- Photo Credit: maupuia / Flickr (CC)
Eastern State Penitentiary, Philadelphia, Pennsylvania
- Photo Credit: Thomas Hawk / Flickr (CC)
Louisiana State Penitentiary, Angola, Louisiana
- Photo Credit: Wikimedia Commons
Missouri State Penitentiary, Jefferson City, Missouri
- Photo Credit: Michael Allen / Flickr (CC)
United States Penitentiary, Leavenworth
- Photo Credit: Wikimedia Commons
Wyoming Territorial Prison, Laramie, Wyoming
- Photo Credit: colddayforpontooning / Flickr (CC)
