If only the mighty walls of Schloss Pfaueninsel could talk! But seeing they can't, inquire if tours are available to hear some of its intriguing tales instead.
To explore this fortified complex, make tracks to Steglitz-Zehlendorf. You'll find lots of other things to see and do in this area, such as Sanssouci Palace, Potsdam's Brandenburg Gate, and Babelsberg Film Park.