Berlin is in Germany.
Berlin . Located in northeastern Germany on the banks of the rivers Spree and Havel , it is the centre of the Berlin-Brandenburg Metropolitan Region , which has roughly 6 million residents from more than 180 nations . Nazi Germany is the common English name for the period in German history from 1933 to 1945 , when Germany was governed by a dictatorship under the control of Adolf Hitler and the Nazi Party ( NSDAP ) .