The Golden Gate Bridge spans the Golden Gate from San Francisco to Marin County. It was completed in 1937 and is currently the second longest suspension bridge in the United States. The bridge is constantly painted vermilion orange by a staff of 38 painters. There is a $5 toll for traveling southbound across the bridge, traveling northbound is free.
Some of the best views of the bridge and San Francisco Bay-- and the most available parking spaces, are found on the north side, in Marin county. From there you can walk across the bridge, a 1.7 mile trip. Pets are not allowed. Another great picture site with ample parking is the East Beach, near Crissy field in the Presidio.