![Project Impossible](https://image.tmdb.org/t/p/w342/3Mipamh7sqoGLQYenZeBZhYmdWo.jpg)
1 Season
10 Episode
Project Impossible - Season 1 Episode 6 Digging Deeper
New technology is allowing us to build underground structures that far surpass any building on earth. South Dakota is building a mile deep structure, inside an abandoned gold mine, to study the universe. London is building a "silent" rail network to prevent gridlock. Mexico City is burrowing 39 miles underneath the city to save it from drowning. On this episode: Sanford Underground Research Lab; London Cross Rail and Mail Rail; Mexico City Emisor Oriente.
- Year: 2017
- Country: United States of America
- Genre: Documentary
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- Cast: Ike Amadi