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The Golden Gate Bridge at San Francisco, the longest suspension bridge in the world was opened on May 27, 1937. A view taken from one of the towers of pedestrians swarming across the Golden Gate Bridge immediately after the opening. (AP Photo)

Golden Gate Bridge's 75th anniversary

San Francisco has held a yearlong 75th anniversary celebration of the opening of the iconic Golden Gate Bridge with a string of parties, guided tours and festivals. The bridge opened to the public on May 27, 1937.