UK,
2017, 8 h 23 min
(Length: 41–42 min)
Episodes(12)
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World's Largest Radio Telescope (S03E01)
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Panama Canal Overhaul (S03E02)
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World's Biggest Ship (S03E03)
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Ice Base (S03E04)
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Mega City Railway (S03E05)
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The Invincible Tower (S03E06)
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International Space Station (S03E07)
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US Navy's Super Ship (S03E08)
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Inside the Tesla Factory (S03E09)
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World's Biggest Aircraft (S03E10)
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World's Tallest Roller Coaster (S03E11)
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Monster Oil Rig (S03E12)
Gallery (71)
Mega City Railway (S03E05)
Photo © Discovery Networks
Mega City Railway (S03E05)
Photo © Discovery Networks
Mega City Railway (S03E05)
Photo © Discovery Networks
Mega City Railway (S03E05)
Photo © Discovery Networks
Mega City Railway (S03E05)
Photo © Discovery Networks
Mega City Railway (S03E05)
Photo © Discovery Networks
Mega City Railway (S03E05)
Photo © Discovery Networks
Mega City Railway (S03E05)
Photo © Discovery Networks
Mega City Railway (S03E05)
Photo © Discovery Networks
Mega City Railway (S03E05)
Photo © Discovery Networks