If only the time-worn walls of Dybowski Castle could talk! But seeing they can't, inquire if tours are available to hear some of its fascinating tales instead.
You're spoiled for sightseeing choice when spending time in Torun. Dybowski Castle is a good place to kick off here, but there are lots of other fine places to visit. Old Town Hall, Old Town Market Square, and Moto Arena Torun are near the fortified complex and will round out your day nicely.