[VIDEO] Watch Vintage Film of 1950s Construction of Michigan’s Mackinac Bridge

As many of America’s oldest bridges are being demolished to make way for newer, larger bridges, it’s important to look back and understand how those bridges –and other historic buildings- came to be built prior to modern technology. Last year, a collection of 55 year old pictures from the construction of the world famous Seattle Space Needle were released to the public, shedding some interesting insight into the process of the build and the people who built it.

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