The Hofbräukeller is a restaurant in Haidhausen, Munich, Germany owned by Hofbräuhaus brewery.
It is a traditional Bavarian restaurant in a cellar with a beer garden, not a tourist spot like the Hofbräuhaus am Platzl. It is a part of the Wiener Platz, home to the Wiener Markt. Adolf Hitler gave his first political speech as a member of the Deutsche Arbeiter Partei at the beer hall on October 16, 1919.
References
Hofbräukeller Wikipedia(Text) CC BY-SA