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Golden Gate Bridge: How 4,000 Workers Spun 80,000 Miles of Wire and Bridged San Francisco's Unbridgeable Bay

In 1933, engineer Joseph Strauss defied geologists, the Navy, and the Pacific fog to erect two 746-foot towers in open ocean — then strung 80,000 miles of wire across them, inventing the safety net that saved 19 lives and changed construction forever.

Built to Last

Built to Last

A biweekly 1-minute video series uncovering how the world's most iconic structures were built — from ancient wonders to modern skyscrapers.

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