Cologne - The Hohenzollern Bridge is a bridge crossing the river Rhine in the German city of Cologne. It crosses the Rhine at 688.5km. This bridge is only accessible to rail and pedestrian traffic. It is the most heavily used railway bridge in Germany with more than 1,200 trains daily, Hohenzollern Bridge Equestrian statue Love locks Cologne's Hohenzollern Bridge is a romantic place for lovers. Tourists and Cologne residents like to immortalise their relationship in the form of love locks on the bridge. As a sign of eternal love and fidelity, they attach their lock to the bridge grating and throw the corresponding key into the Rhine. Thousands of individually decorated love locks now decorate the Rhine bridge. under the bridge