(CNN) — The Golden Gate Bridge in San Francisco took four years to build, costing $35 million and finally opened in 1937. It has remained one of the engineering world’s most famous poster boys since. But it’s not the only…
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(CNN) — The Golden Gate Bridge in San Francisco took four years to build, costing $35 million and finally opened in 1937. It has remained one of the engineering world’s most famous poster boys since. But it’s not the only…
Read More