lessing - Gotthold Ephraim Lessing (1729-1781), German writer, philosopher, dramatist, publicist, and art critic (Wikipedia).
Western wing, west façade:
goethe - Johann Wolfgang von Goethe (1749-1832), considered by many to be the most important writer in the German language and one of the most important thinkers in Western culture (Wikipedia).
schiller - Friedrich von Schiller (1759-1805), German poet, philosopher, historian, and playwright (Wikipedia).
On the roof several statues, which are not photographed (yet)