Classified for credit

Preserved railroad depot and museum in Vinton, IA documenting rail history — covers 19th-century transportation technology and Iowa economic development.

Restored 19th-century grist mill with operational millstone machinery — covers mechanical energy transfer, grain milling, and agricultural history.

Preserved 19th-century one-room schoolhouse museum in Iowa — covers the history of American public education and rural community life in the Midwest.

County historical museum in Greenfield, IA documenting local settlement and agricultural heritage — supports Iowa and Midwest history units.

Small-town Iowa historical museum preserving Albert City's agricultural and immigrant settlement heritage.

County museum and historic jail in Centerville, IA — covers 19th-century local governance, law enforcement history, and Iowa pioneer settlement.

Local history museum preserving Belle Plaine area artifacts — supports Iowa regional history and community studies.

Small local history museum covering Polk City and Big Creek area settlement, agriculture, and community development in central Iowa.

Iowa State University art museum with decorative arts and fine-arts collections — supports art history and material-culture study.

Buena Vista County museum covering northwest Iowa pioneer settlement, agriculture, and Storm Lake regional history.

Small county history museum covering Iowa pioneer settlement, local agriculture, and 19th-century community development.

Regional Iowa heritage museum documenting Cedar Valley community and agricultural history — local history and social studies.

Local history museum in northwest Iowa covering regional settlement, agriculture, and Great Lakes area heritage.

Small Iowa historical museum in Clermont covering 19th-century settlement, mill history, and local community development.

Small-engine museum (Clinton Engines) — mechanical engineering, internal-combustion history, and Iowa manufacturing.

Preserved communal kitchen from the Amana Colonies — covers 19th-century communal society, social history, and domestic labor practices.

County historical museum covering Davis County, Iowa settlement, local governance, and 19th-century rural life.

Regional county museum covering Iowa Great Lakes area settlement, Native American history, and pioneer-era social history.

Victorian-era house museum with doll collection documenting 19th-century domestic life and material culture in Iowa.

Combined county historical museum and research library in Fayette County, IA — covers Iowa pioneer and agricultural history with primary-source archive access.

County historical society museum covering local Iowa settlement and regional history through artifacts and documents.

Local history museum covering Grant County settlement, agriculture, and regional heritage — supports Wisconsin/Iowa local and state history studies.

County-level historical museum covering the settlement and development of Shenandoah, Iowa and the surrounding region.

County historical museum in Jefferson, Iowa covering local settlement, agriculture, and 19th–20th century rural Midwestern history.