In 1832,a contractor named Philip Duffy set out to construct mile 59of the line
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In 1832,
a contractor named Philip Duffy set out to construct mile 59
of the line
a contractor named Philip Duffy set out to construct mile 59
of the line
Full Transcript
00:00:01.000 --> 00:00:04.008
In 1832,
a contractor named Philip Duffy
00:00:04.016 --> 00:00:06.096
set out to construct mile 59
of the line.
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Movie Summary
Using cutting-edge technologies such as ground penetrating radar (GPR), LIDAR (Light Detection and Ranging), and 3-D imaging, scientists research fascinating underworlds of secret tunnel networks, ancient structures, and bizarre g...
