What city does Bundestag and Reichstag building have in common?
Reichstag building: The Reichstag (German: "Reichstagsgebäude" ] ; officially: "Deutscher Bundestag - Plenarbereich Reichstagsgebäude" ] ) is a historic edifice in Berlin, Germany, constructed to house the Imperial Diet (German: "Reichstag"), of the German Empire.
i don't know