In this May 31, 2016, file photo, the Cathedral of Learning, a landmark listed in the National Register of Historic Places, stands on the University of Pittsburgh's main campus in Pittsburgh (AP Photo/Bill Sikes, File)
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In this May 31, 2016, file photo, the Cathedral of Learning, a landmark listed in the National Register of Historic Places, stands on the University of Pittsburgh's main campus in Pittsburgh (AP Photo/Bill Sikes, File)
