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Cities of the Underworld Season 3 Episode 13

Beneath the sunny façade of Sydney, Australia lies a dark past.

Underground Sydney is explored. Included: a 19th-century prison; caves that were once home to fugitive outlaws; gold mines. Also: a secret World War II storage place for chemical weapons is toured by those who once worked there.

Episode Title: Alcatraz Down Under

Air Date: 2009-02-09