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[narrator] Where once
there was solid rock face, now the hillside
is honeycombed with a warren
of passageways and cells. [Mabry] There are
long tunnels, and many areas
hidden from view. It feels like it was a very
secretive and defensive place
there was solid rock face, now the hillside
is honeycombed with a warren
of passageways and cells. [Mabry] There are
long tunnels, and many areas
hidden from view. It feels like it was a very
secretive and defensive place
Full Transcript
00:00:01.000 --> 00:00:03.233
[narrator] Where once
there was solid rock face,
00:00:04.006 --> 00:00:04.633
now the hillside
is honeycombed
00:00:06.899 --> 00:00:09.566
with a warren
of passageways and cells.
00:00:11.666 --> 00:00:13.003
[Mabry] There are
long tunnels,
00:00:13.003 --> 00:00:15.499
and many areas
hidden from view.
00:00:15.566 --> 00:00:19.006
It feels like it was a very
secretive and defensive place.
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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.