This building is used as a business incubator called the Dinkytown Technical Center. It's home to the American Society for Classical Realism, and many others. When I was in 6th grade, it was a public school for 6th through 12th graders(an unusual mix), named "Marshall U". My brother went for a year, and I visited him there.
I've run into older people who went there before my time. I'm glad the building is still being used. You can recognize it's history as a public school by the design of it's restrooms and stairwells. (date: 1999-11-08)