The Mehlsack is Ravensburg's most recognizable landmark, a 51-metre white tower rising above the old town that has served as the city's signature image since the 15th century. Built as part of the medieval fortifications, it stands at the edge of the old town centre and is visible from most approaches to the city.
The tower can be climbed, and the views from the top take in the old town roofline, the surrounding Upper Swabian plateau, and on clear days the Allgäu Alps to the south. The climb is steep and the stairs are narrow, as you would expect from a 15th-century defensive tower. The effort is worth it.