You can browse the exhibits at Pejacevic Castle, a museum with a storied past, during your travels to Virovitica. Take in the museums while you're in the area.
If museums are on your list of things to see in Bjelovar, then you might want to head to International Cartoon Salon Cvorak. If you want to see more of the museums in Bjelovar, you can easily walk to Bjelovar Municipal Museum.