Used to control prisoners being transported to and from Alcatraz Island, locking leg shackles are among many items displayed or shown in photos at the former penitentiary, now a popular national park. Ferries from San Francisco run daily except on winter holidays. nps.gov/alca .
Photography courtesy of National Park Service
This article was first published in January 2013. Some facts may have aged gracelessly. Please call ahead to verify information.