There's a little stone bridge crossing the Blau River located near the so-called "Fischerviertel" in Ulm, Baden-Württemberg, Germany.
The blue is a more than 22-km-long river in the south of the "Schwäbischen Alb" in the east of Baden-Wurttemberg which flows through the city of Ulm and flows into the upper Danube.
The small bridge marks the entrance to the so-called "Fischerviertel", one of the oldest parts of the city.