The Pima County Courthouse was the primary government building in Southern Arizona when this photo was taken in the 1930s. The former Tucson City Hall can be seen behind the iconic blue-tiled courthouse dome in the photo. 

The Pima County Courthouse, built in 1929, was designed by architect Roy Place, who also designed the Pioneer Hotel in downtown Tucson, dozens of buildings on the University of Arizona's campus and several of Tucson's public works buildings from 1920 to 1940. Photo credit: Arizona Historical Society