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What is it all about?

In November 1943 the Press
were invited to have a look around the Secret Underground City.
Click the button above to find out what they saw.
Click on the button below
to see around Tunnel Quarry.

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'From
the distressed areas of South Wales and Tyneside came
workmen in thousands to cut the rock ...
Douglas
Worth, Daily Express, 23 November 1943

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