The Kehlsteinhaus (in English-speaking countries also known as the Eagle's Nest), is a chalet-style building which when built was an extension of the Obersalzberg complex built by the Nazis in the German Alps near Berchtesgaden. The Kehlsteinhaus was an official 50th birthday present for Adolf Hitler. Nicknamed Eagle's Nest by a French diplomat, it was meant to be a retreat for Hitler and a place for him to entertain visiting dignitaries.