If you like live theater productions, book yourself a seat for a play or other stage show at Berliner Ensemble. Check online for prices and times.
This arts and culture attraction in Mitte is well-liked by travelers, so make a spot for it on your travel plans. Don't stop there, though. There are many more places ready for you to check out after Berliner Ensemble. Alexanderplatz, Brandenburg Gate, and Reichstag Building are not far away.