Classified for credit

Hausbarn in Manning, IA is an authentic 19th-century German immigrant farmhouse — covers European immigration, rural settlement, and vernacular architecture.

Iowa nature center with trails and natural-history programming — covers local ecology, wildlife biology, and watershed science.

NPS presidential birthplace and boyhood home of Herbert Hoover — covers Progressive Era politics, presidential history, and late-19th-century rural Iowa life.

Victorian-era home of Union Pacific Railroad chief engineer Grenville Dodge — covers Gilded Age domestic life and transcontinental railroad history.

Guided tours of Iowa's oldest prison cover 19th-century criminal justice, prison reform history, and the evolution of correctional systems in the U.S.

Cedar Rapids History Center covers Iowa and Czech/Slovak immigrant heritage with artifacts and primary-source exhibits.

Restored 1856 station house on the Underground Railroad documenting the abolitionist network and the lives of freedom seekers in Iowa.

Loess Hills nature center with trails and wildlife programs — covers ecology, geology of loess formations, and native habitat biology.

Loess Hills nature center and campground with hiking trails — covers native prairie ecology, watershed biology, and Iowa's unique loess geology.

Iowa state park on Rathbun Lake with trails and lake access — habitat ecology, native plant identification, and outdoor physical education.

Iowa DNR interpretive center on the Maquoketa River — covers native wildlife, floodplain ecology, and freshwater habitat conservation through hands-on exhibits and trails.

Cedar Rapids nature center with working sugar grove farm — covers Iowa woodland ecology, maple sugaring, and sustainable agriculture.

Museum of trucking history at the world's largest truck stop — covers transportation history, diesel engine mechanics, and the American freight industry.

Accredited arboretum with labeled tree and plant collections — supports dendrology, plant biology, and phenology study across all ages.

Hands-on children's museum with interactive exhibits in literacy, math, and basic science — structured play-based learning for early elementary ages.

Iowa National Guard museum covering military history from the Civil War through modern deployments with vehicles, weapons, and personal artifacts.

Museum documenting Great Lakes maritime heritage in Iowa's lakeside region — covers freshwater navigation, boat engineering, and regional water history.

Polk County conservation park with diverse habitats, nature center, and bison herd — supports ecology, wildlife biology, and outdoor education.

Nature-themed outdoor playscape at a county park — supports early outdoor education and unstructured nature play for young children.

Iowa county park nature center with native wildlife exhibits and trail access — covers Midwest ecology, wildlife identification, and conservation practices.

County park and outdoor recreation center with trails, nature areas, and wildlife — supports ecology, PE, and outdoor education fieldwork.

19th-century historic home with documented Underground Railroad connections — covers abolitionism and pre-Civil War Iowa social history.

Living-history village interpreting 19th-century Amish and Mennonite pioneer settlement in eastern Iowa.

Iowa state park along the Des Moines River with forested bluffs and Native American earthworks — ecology, river geography, and regional prehistory.