After the war , the Mitte district was located within the Soviet sector of Allied-occupied Berlin , and from 1949 was part of East Berlin , capital of the German Democratic Republic ( GDR ) . Prior to the 1951 World Festival of Youth and Students , the East German leader Walter Ulbricht had two neoclassical marble statues of Gerhard von Scharnhorst and Friedrich Wilhelm Bülow by Christian Daniel Rauch removed from the sides of the portico ( positioned on the south side of Unter den Linden since 2002 )
World Festival of Youth and Students
3rd World Festival of Youth and Students
Neue Wache