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Alcatraz Island - Wikipedia
Alcatraz Federal Penitentiary - Wikipedia
Alcatraz Island | Facts, Escape, Native Americans, Map, & History
Alcatraz history: from pelican paradise to prolific prison
Alcatraz | Prison, Island, History & Facts | Britannica
Living Memories From The Last Days Of Alcatraz - NPR
Alcatraz Island: Photos Show What It's Like to Visit, History, Tour ...
Alcatraz Island (U.S. National Park Service)
Alcatraz: 250 Years on the Rock - Smithsonian Associates
Plan Your Visit - Alcatraz Island (U.S. National Park Service)