Classified for credit

University of Illinois Springfield public observatory — celestial observation with telescopes supporting astronomy and applied math curriculum.

Ulysses S. Grant's Galena home preserved as a historic site — covers Civil War leadership, Reconstruction-era politics, and 19th-century domestic history.

University arboretum with labeled tree and plant collections — covers dendrology, plant taxonomy, and Midwest native plant ecology.

University-managed conservatory and living plant collection — botany, plant taxonomy, and horticultural science in a hands-on setting.

University astronomy department offering public outreach and telescope viewing covering astrophysics, stellar classification, and observational methods.

University-operated public observatory with scheduled viewing nights — covers telescope optics, celestial mechanics, and observational astronomy.

261-mile Upper Mississippi River refuge with visitor center at Thomson — covers river ecology, migratory bird habitat, and Mississippi River watershed geography.

Illinois' first state capitol building, restored and interpreted — covers early American federalism, state government formation, and 1820s frontier politics.

Suburban nature center with trails and environmental education programs — covers local ecology, native plants, and wildlife observation.

Small IL state park with lake, fishing, and short trails — freshwater ecology and outdoor recreation.

Illinois state recreation area with lake and forest habitats — outdoor education in freshwater ecology, wildlife observation, and conservation.

Municipal botanical garden with labeled plant collections — supports botany, plant taxonomy, and seasonal ecology studies.

Aquatic garden display in Glencoe, IL — supports study of water plants, pond ecology, and plant adaptation; likely part of Chicago Botanic Garden.

Illinois state recreation area on Rend Lake with trails, fishing, and wetland habitat — supports freshwater ecology and outdoor recreation.

Public observatory with telescope access for night-sky viewing — covers celestial mechanics, optics, and observational astronomy.

Illinois state park with lake, trails, and prairie habitat — supports ecology, biology, and outdoor PE curriculum.

College observatory open for public viewings — covers telescope optics, celestial mechanics, and observational astronomy.

Illinois state park protecting rare old-growth white pine forest — covers forest ecology, native plant communities, and conservation biology.

Municipal greenhouse conservatory with diverse plant collections — supports botany, plant biology, and horticulture study.

Illinois wildlife park with native animals in natural habitats plus a visitor center — covers Midwestern native species, conservation, and prairie ecology.

Open-air living-history village with historic structures demonstrating 19th-century Illinois pioneer settlement and trades.

Urban state recreation area with lake and trails — freshwater ecology, wildlife observation, and outdoor PE in a Chicago metro setting.

Illinois state park on Lake Shelbyville with trails and lake habitat — covers freshwater ecology, Illinois geography, and outdoor physical education.

Black-soil tallgrass prairie remnant near Chicago — native plant ecology, Illinois prairie restoration, and insect biodiversity fieldwork.