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Water percolated
through the structure Water percolated
through the structure and into the vaults
through the structure Water percolated
through the structure and into the vaults
Full Transcript
00:00:01.000 --> 00:00:01.433
Water percolated
through the structure
00:00:01.433 --> 00:00:02.433
Water percolated
through the structure
00:00:04.000 --> 00:00:06.001
and into the vaults.
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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.