Question: Obersalzberg is best known as the site of which home of Adolf Hitler in the Obersalzberg of the Bavarian Alps near Berchtesgaden, Bavaria, Germany?

Context paragraphs:
Berghof (residence): The Berghof was Adolf Hitler's home in the Obersalzberg of the Bavarian Alps near Berchtesgaden, Bavaria, Germany.  Other than the Wolfsschanze ("Wolf's Lair"), his headquarters in East Prussia for the invasion of the Soviet Union, Hitler spent more time at the Berghof than anywhere else during World War II.  It was also one of the most widely known of his headquarters, which were located throughout Europe.

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

Berchtesgaden: Berchtesgaden (] ) is a municipality in the German Bavarian Alps.  It is located in the south district of Berchtesgadener Land in Bavaria, near the border with Austria, some 30 km south of Salzburg and 180 km southeast of Munich.  To the south of the city the Berchtesgaden National Park stretches along three parallel valleys.

Eva Braun: Eva Anna Paula Hitler ("née" Braun; 6 February 1912 – 30 April 1945) was the longtime companion of Adolf Hitler and, for fewer than 40 hours, his wife.  Braun met Hitler in Munich when she was a 17-year-old assistant and model for his personal photographer; she began seeing him often about two years later.  She attempted suicide twice during their early relationship.  By 1936, she was a part of his household at the Berghof near Berchtesgaden and lived a sheltered life throughout World War II.  Braun was a photographer, and many of the surviving colour photographs and films of Hitler were taken by her.  She was a key figure within Hitler's inner social circle, but did not attend public events with him until mid-1944, when her sister Gretl married Hermann Fegelein, the SS liaison officer on his staff.

Obersalzberg: Obersalzberg is a mountainside retreat situated above the market town of Berchtesgaden in Bavaria, Germany.  Located about 120 km southeast of Munich, close to the border with Austria, it is best known as the site of Adolf Hitler's former mountain residence, the Berghof and of the mountaintop Kehlsteinhaus, popularly known in the English-speaking world as the "Eagle's Nest".  All of the Nazi buildings were demolished in the 1950s but the relevant past of the area is subject of the "Dokumentationszentrum Obersalzberg" museum which opened in 1999.

Hitler's Obersalzberg Speech: The Obersalzberg Speech is a speech given by Adolf Hitler to Wehrmacht commanders at his Obersalzberg home on 22 August 1939, a week before the German invasion of Poland.  The speech details, in particular, the pending German invasion of Poland and a planned extermination of Poles.  It shows Hitler's knowledge of the extermination and his intention to carry out the said genocide in a planned manner.

Kehlstein: The Kehlstein is, at an elevation of 1881 m , a subpeak of the Göll massif, a 2522 m mountain in the Berchtesgaden Alps.  The rocky promontory is located west of the "Hoher Göll" main summit, high above the Obersalzberg mountain retreat near Berchtesgaden.  It is chiefly known for the Kehlsteinhaus (Eagle's Nest) mountain inn built in 1937–1938, which is a major tourist destination.

Dokumentationszentrum Obersalzberg: Dokumentation Obersalzberg is a museum in the Obersalzberg resort near Berchtesgaden, providing historical information on the use of the mountainside retreat by Nazi leaders, especially Hitler who regularly vacationed in this area beginning in 1928.  The museum was opened in 1999, and by 2007 had been visited by more than one million people.

Führer Headquarters: The "Führer" Headquarters ("Führerhauptquartiere" in German), abbreviated FHQ, is a common name for a number of official headquarters used by the Nazi leader Adolf Hitler and various German commanders and officials throughout Europe during the Second World War.  Perhaps the most widely known headquarters was the "Führerbunker" in Berlin, Germany, where Hitler committed suicide on 30 April 1945.  Other notable headquarters are the "Wolfsschanze" (Wolf's Lair) in East Prussia, where Claus von Stauffenberg in league with other conspirators attempted to assassinate Hitler on 20 July 1944, and Hitler's private home, the "Berghof", at Obersalzberg near Berchtesgaden, where he frequently met with prominent foreign and domestic officials.

Mannlgrat: The Mannlgrat is an east-facing ridge on the "Hoher Göll" in the Bavarian Alps rising above Obersalzberg near Berchtesgaden.

Supporting paragraphs: Obersalzberg Berghof (residence)
Answer: Berghof