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[narrator] The answer
could solve a mystery that has shrouded this island
for decades
could solve a mystery that has shrouded this island
for decades
Full Transcript
00:00:01.000 --> 00:00:03.002
[narrator] The answer
could solve a mystery
00:00:03.266 --> 00:00:06.166
that has shrouded this island
for decades.
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Movie Summary
The world's most incredible engineering projects are revisited to uncover why places full of mysteries and untold secrets are now abandoned ruins.