If you're a fan of theater productions, make sure you join the audience at Dusseldorfer Schauspielhaus. Reserve ahead of time for the best seats in the house.
You'll have to pay an entrance fee to explore this arts and culture attraction in the commercial district of Stadtmitte, so research the cost before you go. If you'd like more fun things to do after your visit to Dusseldorfer Schauspielhaus, Rhine Tower, Duesseldorf City Hall and Benrath Palace are close by.