Cities of the Underworld - Season 3 - Eps 10: Under the Rock
While most people think of San Francisco as a haven for peace-loving hippies, this city by the Bay is actually one of the biggest military defense installations in America. We'll take you beneath its picturesque hills and uncover the biggest ammunitions depot on the West Coast before plunging into a deadly arsenal that once stored nuclear missiles with more than six times the destructive power of the atom bomb dropped on Hiroshima. From the secret Civil War fortification buried beneath Alcatraz to the human trafficking tunnels winding below Chinatown, San Francisco's underground is evidence of its sordid past.
About Cities of the Underworld

Title: Cities of the Underworld
First Air Date: 2007-03-02
Last Air Date: 2021-10-26
Status: Ended
Rating: 8/10 (from 11 votes)
Language: EN
Seasons: 5
Total Episodes: 48
Network: History Planète+ A&E
Genres: Documentary
Production Companies: Thirty Four Productions, Authentic Entertainment
Synopsis
Don Wildman travels to the farthest and deepest reaches of the globe, using cutting-edge technology to explore mysteries buried deep underground.
Cast

Don Wildman
Host