When I was a graduate student at the University of Chicago, I must have driven past the little park a few times. Hyde Park, where the University is located, is a neighborhood including fraternity houses, foundation headquarters, school department offices, even President Obama's family home. Frank Lloyd Wright's Robie House can be found there, and Henry Moore's chilling death's-sculpture marking the place where scientists first split the atom.

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The park is named Harsh Park. It is a mile or...