Austrian filmmaker Andreas Sulzer claims to have found Hitler's 'largest secret weapons research facility' following information contained in US intelligence reports describing a massive underground tunnel system excavated in granite near the Mathausen-Gusen concentration camp.
Austrian filmmaker Andreas Sulzer claims to have found Hitler's 'largest secret weapons research facility' following information contained in US intelligence reports describing a massive underground tunnel system excavated in granite near the Mathausen-Gusen concentration camp.
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