It can be seen in many pictures of Cologne with the cathedral in the background: the Cologne Hohenzollern Bridge. The railway bridge with the characteristic truss arched bridges was built from 1907 to 1911 to replace the cathedral bridge, which could no longer cope with the increasing rail traffic. It was listed as a historical monument in 1997. During the Second World War, the Hohenzollern Bridge was the only bridge in Cologne that was not destroyed by air raids, but by the Wehrmacht itself, which wanted to make it difficult for the Allies to cross the Rhine. Today, the impressive structure also has walkways and cycle paths on both sides and is also known for the many love locks that are placed here by lovers.