1) Mountain of Lower Saxony 
[Harz] The Schalke is a mountain, {Höhe|762|DE-NN|link=true}, in the Upper Harz in the German state of Lower Saxony. It lies in Goslar district north of Clausthal-Zellerfeld and west of Schulenberg. From 1959 there was a French listening post on the summit, which was supplemented in 1968 by a 64 m high concrete tower. This tower stood empt...