After an activity on a wet and dreary day? Wander around the interesting exhibits at Guanfu Museum. There's always an opportunity to learn a few new things.
You'll be spoiled for sightseeing choice when visiting Chaoyang. Guanfu Museum is a good place to start here, but there are loads of other worthwhile sights to check out. Sanlitun Road, 798 Art District, and Chaoyang Park are not far from the museum and will round out your day nicely.