If you're looking for some intellectual stimulation, spend an afternoon at Bergisches freilichtmuseum Lindlar. Whether it's history, traditions or cultural practices, you'll find lots of intriguing displays to keep you entertained here.
This collection of historical artifacts is situated in Troisdorf, a place that has so much on offer! Beethoven House, University of Bonn, and Bonn Marketplace are other fine sightseeing choices not far away when you're done at Bergisches freilichtmuseum Lindlar.