Classified for credit

Heritage museum preserving antique steam threshing equipment and farm machinery — covers agricultural history and early mechanization of the American Midwest.

Mitchell County, IA nature center — Cedar Valley ecology and beginner naturalist programs.

Preserved 19th-century limestone grist mill complex on the Turkey River — milling technology, Iowa frontier commerce, and industrial history.

Regional art museum in a historic mansion with American and European collections — supports visual art history and studio art curriculum.

Museum documenting Missouri River exploration, commerce, and settlement history — Lewis and Clark era through steamboat trade and Plains geography.

Urban wetland education center on the Mississippi River — covers riparian ecology, migratory birds, and wetland conservation biology.

Museum and research library documenting Czech and Slovak immigration to America — covers ethnic heritage, immigration history, and primary-source research.

Large national motorcycle museum tracing American motorcycle manufacturing history and the engineering evolution of the motorcycle from 1900s onward.

National hall of fame in Knoxville, IA documenting the history of sprint car racing — covers automotive engineering and motorsports heritage.

County environmental education center with trails and interpretive programming covering Iowa prairie, woodland, and watershed ecology.

Restored tallgrass prairie refuge with visitor center — covers prairie ecology, native species restoration, and Midwestern biogeography.

Living-history pioneer farm in Iowa with original 19th-century structures — covers agricultural history, westward settlement, and rural life.

Iowa municipal arboretum and botanical gardens — dendrology, native plant identification, and seasonal plant biology.

Hands-on children's museum in Clear Lake — interactive exhibits build early literacy, numeracy, and basic science concepts for younger learners.

Iowa county park with a nature center, trails, and creek access — local ecology, native plant and animal identification, and outdoor education.

Regional arts center in Ames, IA with gallery exhibitions and art education programming — supports studio art and art history curriculum.

Restored 1842 Iowa State Capitol building — covers Iowa statehood, territorial government, and civic architecture.

State park along the Cedar River with limestone palisades — geology, riparian ecology, and native plant identification.

Iowa state park with limestone outcrops, woodlands, and creek ecosystems — supports ecology, geology, and outdoor PE objectives.

Museum dedicated to Muscatine's historic freshwater pearl button industry — covers manufacturing history and Mississippi River ecology.

Living-history village and working Dutch windmill preserving Iowa's Dutch immigrant heritage — covers immigration, 19th-century technology, and cultural geography.

Nature center with restored historic barn and trails — covers local ecology, wildlife habitat, and conservation biology.

Iowa state park atop a bluff overlooking the Mississippi River — covers river ecology, glacial geology, and Upper Mississippi geography.

Iowa state park atop a glacial knob — covers glacial geomorphology, prairie ecology, and physical geography of the Des Moines Lobe.