An industrial scene from 1957: the massive bulk of the blast furnaces, the smoggy sky and cars motoring along the Parkway East.
Stories featuring:
pollution and smog
By the time it cruised over Pittsburgh, the Graf Zeppelin had earned worldwide fame.
Look at the picturesAirship Graf Zeppelin passes over the Point
Silhouetted in the foreground is the 229-foot tall tower of the historic Allegheny County courthouse.
The picture was made during a race between two steamboats, the William Larimer Jones and the Homestead.
Look at the picturesSmoke, steel bridges and rivers of Pittsburgh