The Iller Bridge Illerbeuren is an important monument of German engineering from the early 20th century. With its impressive span and impressive construction, it was once the longest-span stamped concrete bridge in the world. Originally part of the Memmingen - Legau railway line, over which the "Legauer Bähnle" ran until 1972, the bridge became a symbol of structural change in the region after the line was closed.

After a comprehensive renovation from April 2017 to March 2019, the Iller Bridge now shines in new splendor. The harmonious interplay of architecture and landscape as well as the characteristic main arch and console heads make it an architectural jewel. This jewel, which is now a listed building, is 90 meters long and 13 meters high and blends harmoniously into the surrounding Iller landscape.

The renovation of the Iller Bridge in Illerbeuren not only contributes to sustainability, but also saves an important historic building from demolition. Today the bridge is a tourist highlight in the Lower Allgäu cycle and hiking trail network. A cycling and hiking trail leads over the bridge, which is part of the Unterallgäuer Glückswege, which makes it possible to experience the region in a special way.