There is an observation tower on the summit of the Kahler Asten immediately next to the hotel-restaurant called the Astenturm (Asten tower). From the platform of the tower, which is sea level (NN), there is a superb all-round view over the Rothaargebirge and other parts of the Sauerland. In very clear weather, even the Brocken mountain in the Harz (Saxony-Anhalt), 163 km away, can be seen without the aid of binoculars.