David Frum: What killed Detroit?
  Detroit was the Silicon Valley of the 1920s — the booming home of a glamorous   new industry, a place where huge fortunes were conjured in years, sometimes   months. But while the creators of the computer industry have as yet bequeathed   very little to the built environment, the automobile industry piled up around it   an astounding American city, in astoundingly little time.
  The Detroit of 1910 was a thriving Midwestern milling and shipping entrepot,   a bigger Minneapolis. The Detroit of 1930 had rebuilt itself as a grand   metropolis of skyscrapers, mansions, movie palaces and frame cottages spreading   northward beyond the line of sight, exceeding Philadelphia and St. Louis,   rivaling Chicago and New York. I had a chance to tour central Detroit recently,   my first visit to the downtown core in many, many years.
  Some of the old visual magnificence remains, has even been improved. The   Guardian tower displays again the blazing colors of its vaulted atrium, long   covered up by dry wall. The marble adorning the Fisher building still glows. The   Renaissance Center, once as walled and moated against the city as a medieval   castle, has lowered its defenses, especially on the side facing the Detroit   River. But for the most part, all is decay. Whole towers stand empty, waiting to   join the long line of grand structures that have either been abandoned to   pillage and ruin, like Detroit`s once magnificent neoclassical skyscraper of a   train station, or else pulled down entirely, like the downtown Dayton Hudson   department store, once the largest enclosed shopping space in the United States.
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