Staffelegg (View into Schenkenbergertal; Aargau, Switzerland).
The I passed the next hill (Bözberg) with a great view to the Swiss alps (from the closed-down Restaurant Vier Linden). You can also detect the Habsburg (the initial castle of the famous regent family) in the hill (its over the leather strap or the V2):
There are 2 more castle to be found on this picture (the Wildegg - in the forest a little bit higher than the left corner of the bridge) and the Falkenburg (on the right of the Holcim factory).