US Civil War-era tunnels and buildings found under Alcatraz prison Post a Comment Civil War-era fortifications have been discovered just below the prison's recreation yard, a study shows. Baca Juga'Quick fixes' to the climate crisis risk harming natureIn pictures: Solar eclipse as seen from the UK'Miraculous' mosquito hack cuts dengue by 77% Read More Share : You may like these posts :Ants use sun and memories to navigateRobotic sleeve 'hugs' failing heartsBBC Breakfast presenters meet 'Orangu-cam'Astronomer searches for signs of life on Wolf 1061 exoplanet Post a Comment for "US Civil War-era tunnels and buildings found under Alcatraz prison"
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