Environment: Monster Mast

Paris has its Eiffel Tower. New York has the Empire State Building, Chicago the soaring John Hancock Center. And San Francisco? It now seems that the dominant structure in that sculptural city of steep slopes and sharp profiles will be a gigantic television antenna. Rising from the top of residential Mt. Sutro in the geographic center of town, it will bestride the narrow city like a clumsy metal Colossus, standing a full 1,811 feet above sea level. To signal its presence to low-flying planes, it will wear gaudy red and white stripes studded with seven rows of 1,000-watt beacons. If it...

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