The Eagle's Nest or the Kehlsteinhaus is a Third Reich–era building erected atop the summit of the Kehlstein, a rocky outcrop that rises above Obersalzberg near the town of Berchtesgaden, in southeastern Germany. It was used exclusively by members of the Nazi Party for government and social meetings. It was visited on 14 documented instances by Adolf Hitler. Today, it is open seasonally as a restaurant, beer garden, and tourist site. 

The Kehlsteinhaus sits on a ridge atop the Kehlstein, a 1,834 m (6,017 ft) subpeak of the Hoher Göll that rises above the town of Berchtesgaden.

Today the building is owned by a charitable trust, and serves as a restaurant offering indoor dining and an outdoor beer garden. It is a popular tourist attraction to those who are attracted by the historical significance of the "Eagle's Nest". 

- Wikipedia