"The Berghof" . . "a retreat" . "Berghof (residence)" . "summer villa" . . . . . . . . "his vacation home" . . . "Berghof residence" . . "his Obersalzberg house" . "Hitler's house" . "Berchtesgaden" . . . "Berghof Retreat" . "the ''Berghof''" . . "Hitler's Eagle's Nest" . "1916" . . . . "Hitler's retreat" . . "Obersalzberg" . . . "Berghof (residence)" . . . "Berghof" . . "Hitler's mountain residence" . "Berhof" . . .