A Top-Secret Project From 1794
The Air Force most certainly has the best-kept secrets in the entire military branch of the US. now this one is no longer a secret. This is the blueprint for a mysterious supersonic flying saucer. But it never came to fruition.
A Top Secret Project From 1974
German High-Speed Train
This is the Schienenzeppelin, Germany’s first high-speed train. It was quite an invention at the time. According to the Germans, it could travel up to 143 miles per hour. It’s not certain if it was used for the public or for secret missions.
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German High Speed Train
