l-Erbgħa, 05:00 BST ![Blowing Up History - Season 4](/img/united_kingdom/reviews/discovery_science/blowing_up_history_season_4.png)
Blowing Up History - Season 4
Alcatraz's Hidden Secrets
Alcatraz is one of the most famous prisons in the world. Experts investigate its remarkable engineering secrets and why it was so hard to escape from.