Golden Gate BridgeIt took four years of construction at a cost of 35 million to open San Francisco's Golden Gate Bridge in 1937 but it was ahead of schedule and actually under budget. But it is still a awesome and spectacular site to behold with views that stretch from Golden Gate Park and Twin Peaks to the Bay Bridge and beyond. The Golden Gate Bridge's 4,200 foot long main suspension span held a world record that stood for 27 years. The Bridge links San Francisco with Marin County and is 1.7 miles long. You can cross it by car, bike or on foot and it is a must see for all who are traveling to the Bay area.