Digging Deeper
- Episode aired Sep 12, 2018
- 41m
New technology is allowing us to build underground structures that far surpass any building on earth. Sanford Underground Research Lab, London Cross Rail and Mail Rail, Mexico City Emisor Or... Read allNew technology is allowing us to build underground structures that far surpass any building on earth. Sanford Underground Research Lab, London Cross Rail and Mail Rail, Mexico City Emisor Oriente.New technology is allowing us to build underground structures that far surpass any building on earth. Sanford Underground Research Lab, London Cross Rail and Mail Rail, Mexico City Emisor Oriente.