The pedestrian bridge du Rif was built on the occasion of the first international horticultural exhibition in Kiel and Strasbourg in 2004, when the two cities decided to build a bridge dedicated to cyclists and pedestrians, and the bridge is also called "Mamram Bridge", the architect responsible for its construction was called "Marc Mamram" (Marc Mimram), and today it is an important tourist and national landmark because it symbolizes peace and cooperation in Europe.