Deep in the mysterious Leinawald in the German state of Thuringia, where rumors have been circulating over disappeared Nazi cats for decades, a new, intriguing hypothesis is now popping up. What if there is not just a treasure hidden under the dense canopy, but a completely underground complex from the Third Reich? The German historian Mirko Kühn claims to have loud evidence for the existence of a secret underground Nazi-Hangar.

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