Union Arcade Construction- Lower Floors (South)
Union Arcade Construction- Fourth Floor
Pittsburgh Academy
Bridge and River
Zimmerman and Co.
Union Arcade Construction -Roof (East View)
Fifth Avenue Hump Removal
Hump District
Liberty Avenue
Union Arcade Construction- Steel Framing
Duquesne Horse & Mule Company
Depression-Era Headlines
Mellon Square Park
Wabash Bridge
Penn Dye Works
9th and Duquesne
Manchester Bridge
Liberty Avenue
9th and Penn
Baltimore and Ohio Railroad
Flood of 1913
Hump Removal on Fifth Avenue
Diagram of Manchester Bridge
Mellon Square Park
Lemon Alley Hump Cut
Diamond Street Hump Cut
Sixth Avenue Hump Cut
Grant Street Hump Cut