In the years 1884 to 1892, a 22 meter high observation tower was erected on the Adlersberg: the Eagle Mountain Tower. Building material was native porphyry. Extensive repair measures took place in 1929 and 1971 to 1972.  The tower can usually be climbed every day except Mondays and on Father's Day for a small fee via a spiral staircase of 91 steps. The view from the tower extends to the mountains of the High Rhön (Kreuzberg, Heidelstein, Wasserkuppe), in front of the Dolmar and even closer Suhl with the nearby business park Friedberg. Following the course of the Federal Highway 73, you can see the Gleichberge (Wikipedia).
Although the Adlersberg is 849.9 m lower than some of its northern neighbors (its "Neben" summit Neuhäuser hill (890.6 m), Großer Eisenberg (907.4 m), Großer Finsterberg (944.1 m), Schneekopf ( 978 m), Großer Beerberg (982.9 m)), but it towers over all the mountains, which connect to the south clearly by 200 to 300 m.
At reasonably clear visibility conditions, the Adlersberg, which is very wide with its direct sub-peaks, is already visible 20 km away from the Federal Highway 73 near Eisfeld together with the large Eisenberg separated by a valley (Wikipedia).