Classified for credit

College-affiliated observatory and planetarium open to the public — covers observational astronomy, optics, and celestial mechanics.

Historic 19th-century observatory on Mount Ida with working telescopes — covers observational astronomy, telescope optics, and the history of American astronomy.

Public observatory in a dark-sky park setting — covers telescope optics, celestial navigation, and observational astronomy.

Small community nature center with trails and natural-history exhibits — local ecology, wildlife identification, and outdoor science.

Heritage area documenting the Ohio & Erie Canal system — covers 19th-century transportation history, civil engineering, and regional economic development.

Ohio craft arts museum with exhibits on fiber, ceramic, glass, and metal craft traditions — covers applied art history and material culture.

Museum in Ohio's historic glass-manufacturing city covering glassmaking processes and history — materials science, industrial chemistry, and manufacturing history.

Ohio Historical Society site at Zoar, a preserved 19th-century German separatist communal village — covers utopian settlement and frontier history.

Active Ohio state capitol building with guided tours — covers state government, civics, and 19th-century Ohio political history.

University teaching observatory with public viewing nights — covers telescope optics, stellar astronomy, and observational science methods.

Licensed wildlife rehabilitation center near Columbus — covers native Ohio species biology, animal care, and conservation practices.

Ohio stone fort site of debated origin — covers prehistoric Native American archaeology and early Ohio settlement history.

Ohio State University's geological museum with fossil, mineral, and rock collections — covers paleontology, mineralogy, and Ohio's geologic history.

Federal wildlife refuge on Lake Erie covering Great Lakes wetland ecology, migratory shorebirds, and waterfowl biology with auto-tour routes.

Federally managed wildlife refuge on Lake Erie — covers migratory bird biology, wetland ecology, and Great Lakes watershed conservation.

Delaware-Ohio observatory with public telescope nights and astronomy programming — covers celestial mechanics, optics, and observational astronomy.

Piatt Castle Mac-A-Cheek (1860s Norman-French chateau) — Civil-War-era architecture and Ohio history.

University planetarium at Bowling Green State University — covers astronomy, the solar system, and celestial mechanics through projected sky programs.

Polar-themed exhibit area at Columbus Zoo focusing on Arctic wildlife biology and cold-climate ecosystems.

Ohio state park centered on glacially formed lakes offering freshwater ecology study, shoreline biology, and outdoor recreation.

Cleveland Metroparks Zoo primate, cat, and aquatics exhibits covering mammalian biology, animal behavior, and aquatic ecosystems.

Ohio state park centered on a glacially formed kettle lake — supports study of glacial geology, freshwater ecology, and northeast Ohio natural history.

Large Ohio state park on a glacially formed lake — covers freshwater ecology, glacial geography, and native wildlife observation.

Miami University art museum with permanent and rotating collections — covers art history, studio media analysis, and visual culture across periods.