The Soap and Dirt History Museum reveals the secrets of domestic and public hygiene in a humorous and unconventional way—from ancient times to the present day. This place will take you back to when soap was not an everyday item. You’ll see how hygiene was maintained in past centuries—or rather, how much dirt was accepted. The museum's narrative refers to the traditions of Bydgoszcz's baths and soap factories. A keepsake from your visit to the museum is a soap bar you create yourself.