US Civil War-era tunnels and buildings found under Alcatraz prison [Archive]

View Full Version : US Civil War-era tunnels and buildings found under Alcatraz prison

Nickie

07-03-2019, 22:10

Civil War-era fortifications have been discovered just below the prison's recreation yard, a study shows.

More... (https://www.bbc.co.uk/news/world-us-canada-47475564)