The 3rd Street "Glass Hallway", as it appeared in the late 1960s. In this view, we see the north end of the corridor, with the 3rd Street entrance in the distance. Some years earlier, the leaky window-ceilings had been covered with tar paper and shingles, making the interior appear dark and foreboding.
Photo from http://www.daytonhistorybooks.com/daytonarcadephotos_html (Robert Thaman)



Another late '60s shot, this a reverse view of the corridor showing the entryway into the Rotunda / Food Market area. Note the "Shopping Center" sign that had, obviously, been added as an enticement to lure customers in...and away from new-fangled, suburban shopping options such as HILLS & DALES CENTER, VAN BUREN CENTER or TOWN & COUNTRY CENTER.
Photo from http://www.daytonhistorybooks.com/daytonarcadephotos_html (Robert Thaman)