The Golden Gate Bridge opened in 1937 and is the 1.7-mile-long iconic, most famous, a beautiful bridge connecting San Francisco to Marin County. The bridge is one of the world's Seven Wonders and the most photographed. The bridge is a symbol of American ingenuity and resolve, having been constructed during the era of the Great Depression. Today, this beloved international icon and true engineering marvel carries about 40 million vehicles a year and serves as a vital transportation link and a major travel destination for millions of visitors from around the world.