Name given to Hitler's mountain-top home at Berchtesgaden in the Bavarian Alps. Called Kehlsteinhaus in German, it's a chalet-style house that serves as an extension of the Obersalzberg complex erected in the mountains above Berchtesgaden. The Kehlsteinhaus was intended as a 50th birthday present for Adolf Hitler to serve as a retreat, and a place for him to entertain visiting dignitaries.