The Mäuseturm, also known as the Donnersberger Warte, is located outside the town at an altitude of approx. 384 m between the Marsberg districts of Obermarsberg and Giershagen. The 13 m high round tower with a diameter of 4.60 m and a wall thickness of 1 m can be seen from afar. There are remains of a circular wall in front of the tower.
It is a tower from which the movements on the long-distance trade route "Frankfurter Weg" were controlled. A toll probably had to be paid here. This was quite common in the High Middle Ages. In particular, this must be seen in connection with the Stapelplatz am Steppel. All transported goods had to be offered for sale here. This was the only way for Obermarsberg to control and profit from long-distance trade, as the trade route itself turned off to Glindegrund and did not touch Obermarsberg.
The name "Mäuseturm" (mouse tower) probably has nothing to do with mice but is possibly derived from the Middle High German "mûsen", which means to peer or lurk. It could also come from the Old High German word "muta", which means toll.
You can park at the tower and climb it at any time.