National Geographic : 1939 Feb
©Clyde Sunderland WITHIN SIX YEARS MAN HAS WROUGHT HERE THREE WORLD MARVELS OF ENGINEERING By the 8'4-mile Bay Bridge San Francisco is linked to five "mainland" cities, and historic ferries have dwindled. The lofty Golden Gate Bridge has made more accessible the coastal redwood belt clear up into Oregon. Treasure Island, dredged from bay-bottom, is the 400-acre walled city ofthe International Exposition of 1939. This new United States soil will become a permanent airport. Nearly two million people inhabit the area shown inthis view taken from 6,000 feet aloft.