10K views · 298 reactions | Alcatraz—the notorious island prison located in San Francisco harbor—opened #onthisday in 1934. Visit the site, now a tourist destination, on Aerial Cities: https://bitly.com/33ao1wu | Smithsonian Channel Aviation Nation | Facebook

To this day Alcatraz is one of the world's most notorious prisons. A former guard shares the story of a criminal's brilliant escape, also shedding light on the harsh conditions inside. #CodesAndConspiracies #Alcatraz Watch full episodes on discovery : https://bit.ly/3HfHr6e | Love History

97 reactions · 354 shares | In the dark tunnels of Ireland’s Alcatraz, the past isn’t so quiet. New episodes of #ExpeditionX Wednesdays at 9p on Discovery. | Discovery | Facebook

It’s the most notorious prison in history – and 13 escape attempts were made from Alcatraz. Historian Ashley Rubin discusses the most famous, on the HistoryExtra podcast. Images: Getty, FBI Archives | HistoryExtra | Facebook

Prisoner Who Escaped From Alcatraz Sends Letter To The FBI 50 Years Later! Was Alcatraz, San Francisco’s notoriously inescapable prison, invulnerable to such escape attempts? Well, one letter – claiming to be from someone who successfully escaped the prison – threatens to shatter this idea. Let’s dive into the San Francisco bay and try to get to the bottom of it. | Be Amazed