Classified for credit

North Carolina state park with quartzite monadnock, waterfalls, and diverse ecosystems — covers geology, plant ecology, and Blue Ridge natural history.

Historic 1850s working farm with preserved buildings and agricultural demonstrations — covers Oregon pioneer settlement and 19th-century farm life.

One of Hawaii's premier white-sand beaches within a state recreation area — marine coastal ecology and Pacific Ocean geography.

Reconstructed 19th-century pioneer village with over 100 historic structures — Oklahoma territorial settlement, daily frontier life, and material culture.

Comprehensive museum tracing Harley-Davidson's history from 1903 — covers American industrial manufacturing history, mechanical engineering evolution, and brand culture.

Working motorcycle manufacturing plant offering guided factory tours — covers assembly-line engineering, industrial manufacturing, and American labor history.

Living-history homestead from Oklahoma's Land Run era — covers pioneer agriculture, territorial settlement, and early Oklahoma statehood.

National historical park at the site of John Brown's 1859 raid — covers Civil War causes, abolitionism, Reconstruction, and Appalachian geography.

NPS site preserving Harriet Tubman's Auburn home and AME Zion Church — abolitionist history, Underground Railroad, and women's suffrage.

NPS park preserving Tubman's birthplace landscape and Underground Railroad routes — primary-source abolitionist history, civil rights, and Maryland geography.

Idaho state park on the Island Park caldera near Yellowstone — covers volcanic geology, riparian ecology, and wildlife biology in a geothermal landscape.

Large Appalachian state park in the Hudson Highlands — forest ecology, geology, trail navigation, and outdoor education across diverse terrain.

Coastal state park with tide pools, sea stacks, and shorebird habitat — covers marine ecology, geology, and Pacific Coast geography.

Coastal Georgia NWR with exceptional birding and wildlife viewing — covers migratory bird ecology, coastal habitat, and conservation biology.

Fifty-acre botanical garden with over 40 themed gardens and a camellia collection — plant taxonomy, horticulture, and Florida native ecology.

NPS-managed Truman family home and visitor center — primary-source Cold War presidency, 20th-century domestic life, and executive branch civics.

Presidential library and museum covering Truman's Cold War decisions, the Marshall Plan, and post-WWII American policy.

Private living-history village with 30+ historic log structures relocated to one site — covers 18th–19th century Appalachian pioneer settlement.

Restored 18th-century tavern on the Minute Man National Historical Park — covers colonial daily life and the April 19, 1775 Concord fight.

Old-growth white pine forest with logging museum and ranger programs — forest ecology, Michigan timber history, and field botany.

Harvard's research collection of over 21 million zoological specimens — supports taxonomy, evolutionary biology, and comparative anatomy.

Harvard's natural-history museum with mineralogy, zoology, and paleontology collections — applied taxonomy, geology, and evolutionary biology.

Nebraska regional museum with natural history, planetarium, and science exhibits — covers paleontology, astronomy, and Great Plains ecology.

Oregon State University marine science facility with public aquarium touch tanks and exhibits covering marine biology, oceanography, and coastal ecology.