The World of Yesterday but hated politics and shunned political engagement. His autobiography shows some reluctance to analyse Nazism as a political ideology; he tended simply to regard it as the rule of one particularly evil man, Hitler. Zweig was struck that the "Berghof", Hitler's mountain residence in Berchtesgaden, was just across the valley from his own house outside Salzburg. Berchtesgaden was an area of early Nazi activity. Zweig believed strongly in Europeanism against nationalism. Zweig also describes his passion for collecting manuscripts, mostly literary and musical. Zweig collaborated in the early 1930s with composer Richard Strauss on the opera "Die schweigsame Frau", which
Berchtesgaden by the Nazis. In 1972, local government reform united the then independent municipalities of Salzberg, Maria Gern and Au (consisting of Oberau and Unterau) under the administration of the town of Berchtesgaden. Another suggested reform uniting all remaining five municipalities in the Berchtesgaden valley (Bischofswiesen, Ramsau, Marktschellenberg and Schönau) failed to gain enough popular support; it passed in Berchtesgaden but failed everywhere else. The Berchtesgaden National Park was established in 1978 and has gradually become one of Berchtesgaden's largest draws. Mass tourism is confined to a few popular spots, leaving the rest to nature-seekers. Other tourist draws are the Königssee,