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[narrator] Humans have created
thousands of kilometers of underground tunnels for everything from railways,
roads, and subways to mines, sewers,
parking lots, and reservoirs
thousands of kilometers of underground tunnels for everything from railways,
roads, and subways to mines, sewers,
parking lots, and reservoirs
Full Transcript
00:00:01.000 --> 00:00:03.834
[narrator] Humans have created
thousands of kilometers
00:00:03.875 --> 00:00:05.005
of underground tunnels
00:00:05.542 --> 00:00:08.917
for everything from railways,
roads, and subways
00:00:08.959 --> 00:00:13.084
to mines, sewers,
parking lots, and reservoirs.
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Movie Summary
Filmmakers travel to six continents and 20 countries to document the impact humans have made on the planet.