This program takes a long, hard look at how prisons have been designed and built through the ages. The program starts in antiquity, where sewers and dank dungeons were commandeered to keep the unruly and unwelcome captive. Prison designers and experts examine how these ancient roots show up in the design of much more modern prisons, where many elements go beyond the need for security. We'll tour famous prisons from Alcatraz to the newest, maximum-security facilities built during America's most recent wave of prison construction. And examine the features that may well become staples of the next generation of these facilities.