Berchtesgaden the Obersalzberg. In order to serve as an outpost of the German "Reichskanzlei" (Imperial Chancellery), Berchtesgaden and its environs ("Stanggass") saw substantial expansion of offices, security, and support services, mainly on the Obersalzberg. Included in the town were a new railway station, with a reception area for Hitler and his guests, and an adjacent post office. The Berchtesgadener Hof Hotel, where famous visitors such as Neville Chamberlain and David Lloyd George stayed, was substantially upgraded. The "Kehlsteinhaus" (known as the "Eagle's Nest" among the Allies) atop the Kehlstein subpeak of the Hoher Goll was built as a present for Hitler's
Berchtesgaden National Park (). The Watzmann is the third highest mountain massif in Germany. The Watzmann Glacier, located below the eastern face of the Watzmann, and the Blaueis, adjacent to the Hochkalter, are two of the five glaciers in Germany. The first nature conservation area in the Berchtesgaden Alps was created in what is currently the southeastern part of the park in 1910. It had an area of and was organized according to the model of National Parks in the United States. In 1919, the mountain hotel of St. Bartolomew was built. In March 1921, the area was expanded to . At the