Codes and Conspiracies

Secret Prisons

Documentary · History

S3, E5: A secret part of history has remained hidden, locked away for centuries in the hulls of ships in New York and in the depths of an abandoned copper mine.

Nov 8, 2016 · 43m

Information

Released
2016
Run Time
43 min
Rated
PG
Region of Origin
United States
© 2016 Discovery Communications Inc.

Languages

Original Audio
English