Zaozhuang Museum is the city's broad local-history museum, useful if you want more context than a quick stop at canals, memorials, or nearby villages can give. Its displays cover regional archaeology, historical development, and the cultural background of southern Shandong.
It is most worthwhile for travellers already spending time in Zaozhuang rather than passing through. Expect a municipal museum rhythm: some strong objects, some formal interpretation, and a better sense of how the city fits into the province.