The Hohenzollern bridge crosses the river Rhine in the German city of Cologne.
Originally, the bridge was both a railway and street bridge, however after its destruction in 1945 and its subsequent reconstruction it was only accessible to rail and pedestrian traffic.
During the 1980’s the bridge was renovated with two new tracks.
The Hohenzollern bridge now regularly has over 1200 trains pass through daily.
See bridges around the world at Sunday Bridges – San Francisco Bay Daily Photo