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Watch Online / Gateways to New York: Othmar H. Ammann and his bridges (2019)
Desc: Gateways to New York: Othmar H. Ammann and his bridges: Directed by Martin Witz. The adventurous saga of the Swiss bridge builder Othmar H. Ammann, who moved to America as a young engineer - and created modern icons in New York with his visionary suspension bridges.