The Golden Gate Bridge is a suspension bridge spanning the Golden Gate strait, the one-mile-wide, one-point-seven-mile-long channel between San Francisco Bay and the Pacific Ocean. The structure links San Francisco—the northern tip of the San Francisco Peninsula—to Marin County, carrying both U. S. Route 101 and California State Route 1 across the strait. The bridge is one of the most internationally recognized symbols of San Francisco, California, and the United States. It has been declared one of the Wonders of the Modern World by the American Society of Civil Engineers.
Fromm’s travel guide describes the Golden Gate Bridge as “possibly the most beautiful, certainly the most photographed, bridge in the world.” The color of the bridge, officially an orange vermilion called international orange originally used as a sealant, was selected because it complements the natural surroundings and enhances the bridge’s visibility in fog. It opened this date in 1937 and was, until 1964, the longest suspension bridge main span in the world, at 4,200 feet. The Golden Gate Bridge’s clearance above high water averages 220 feet while its towers, at 746 feet above the water, were the world’s tallest on a suspension bridge until 1998 when bridges in Denmark and Japan were built.