Castel Coira, above the village of Schluderns/Sluderno (more ; see also this picture ). It's very near to Glurns/Glorenza.
Image below: the hydroelectric plant of Seledison, only a few 100 m from the castle.
+ click on image to enlarge +
Image below: the hydroelectric plant of Seledison, only a few 100 m from the castle.
+ click on image to enlarge +