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The Minneapolis Armory, built in a marshy area near Kenwood Parkway in 1906, was already showing cracks when this photo was taken. By 1929 the massive structure had settled so much in the soft ground that it had to be condemned. It was torn down in 1933. (Minneapolis Journal photo courtesy mnhs.org)

The Armory in 1907, the year it opened. (Photo courtesy mnhs.org)

The 1909 Minneapolis auto show, the city's second, drew about 45,000 car enthusiasts to the Armory. (Photo courtesy mnhs.org)