Introduction: The Golden Gate Bridge was opened in 1937. It connects San Francisco to the south and Marin County in California to the north, crossing the Golden Gate Strait. The pier span of the Golden Gate Bridge is 1,280.2 meters long. It is the first suspension bridge in the world with a span of more than 1,000 meters. It is 27.5 meters wide and has a total of 6 traffic lanes in both directions. The bridge body is brownish red. The Golden Gate Bridge has the fourth tallest bridge tower in the world, with a height of 227.4 meters and a total length of 2737.4 meters. It is one of the largest single-hole suspension bridges in the world and is regarded as a symbol of San Francisco.

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