Classified for credit

Former federal penitentiary on San Francisco Bay — covers U.S. penal history, Civil War fortifications, and island ecology via ranger-led tours.

Site of the bloodiest single day in American military history — Civil War tactics, strategy, and the political context of the 1862 Maryland Campaign.

National monument preserving 13th-century Ancestral Puebloan cliff dwellings with ranger programs covering archaeology, geology, and indigenous history.

Iowa-class battleship museum on the Delaware River — covers WWII naval history, ship engineering, and U.S. military history across multiple conflicts.

Vanderbilt-era Gilded Age estate covering architectural history, American industrialism, and the social history of the late 19th century.

Major civil rights museum documenting the Birmingham movement, the 16th Street Baptist Church bombing, and the broader struggle for racial equality in America.

Hawaiʻi's premier natural and cultural history museum with extensive Pacific Islander, Polynesian, and natural science collections.

NPS park covering the Freedom Trail, USS Constitution, and Bunker Hill — primary-source American Revolution and early republic history.

Replica ships and interactive museum covering the 1773 Boston Tea Party — colonial taxation, protest, and the lead-up to the American Revolution.

Five-museum complex covering Buffalo Bill, Plains Indians, firearms history, and Western art — broad 19th-century American West curriculum.

California State Railroad Museum in Old Sacramento — Transcontinental Railroad history, locomotive engineering, and excursion-train rides.

Ancestral Puebloan cliff dwellings in a Navajo-managed canyon — covers archaeology, Indigenous history, and Southwest geography.

UNESCO World Heritage Site with 1,000-year-old Ancestral Puebloan great houses — covers archaeology, pre-Columbian astronomy, and Southwest Indigenous history.

NPS military park preserving the site of the Civil War's bloodiest two-day battle — ranger programs cover tactics, soldier life, and the war's Western Theater.

NPS park encompassing Jamestown and Yorktown — covers English colonial settlement and the decisive final campaign of the Revolutionary War.

Living-history village recreating 18th-century colonial life with costumed interpreters, trades demonstrations, and primary-source American history.

Living-history village and interactive park recreating 1800s Indiana frontier life with costumed interpreters and hands-on pioneer activities.

NPS site documenting immigrant processing at America's busiest 19th–20th century entry point — covers immigration history, civics, and primary-source analysis.

Federal immigration processing station turned national museum — primary-source study of U.S. immigration history, citizenship, and Ellis Island's role in American identity.

Frank Lloyd Wright's Fallingwater is a National Historic Landmark illustrating organic architecture, engineering design principles, and 20th-century design history.

NPS site where Lincoln was assassinated — covers Civil War conclusion, presidential succession, and 19th-century American political history with museum exhibits.

NPS site preserving the theater where Lincoln was assassinated — covers Civil War era, presidential history, and Reconstruction with museum exhibits.

Civil War fort where the first shots of the war were fired — covers antebellum politics, military history, and the causes of the Civil War.

NPS unit encompassing four major Civil War battle sites near Fredericksburg — covers military strategy, the Eastern Theater, and the human cost of the Civil War.