Classified for credit

Major presidential library and museum with primary-source documents and artifacts — covers Lincoln's presidency, Civil War, and constitutional history.

Working steam locomotive roundhouse with restoration shop — covers railroad history, steam engineering, and 19th-century industrial technology.

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

Dedicated American Revolution museum at the Yorktown battlefield site — covers colonial history, military strategy, and the founding of the United States.

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

Oldest railroad museum in the US with operating roundhouse and locomotives — covers railroad history, industrial technology, and 19th-century economic development.

Ranger-guided tour of a preserved Ancestral Puebloan cliff dwelling at Mesa Verde — covers Native American history and archaeology.

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

Ancestral Puebloan cliff dwellings with NPS ranger programs — Native American archaeology, Southwest cultural history, and high-desert ecology.

Preserved WWII-era battleship, destroyer, and submarine open for self-guided tours covering naval history and ship engineering.

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

Decommissioned WWII-era Iowa-class battleship museum in San Pedro — naval engineering, WWII history, and Cold War military strategy with extensive walk-through access.

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.

Appalachian logging-era heritage railroad with Shay steam locomotives — covers West Virginia timber industry history, steam engineering, and mountain railroad operations.

Oldest masonry fort in the US — covers Spanish colonial history, military engineering, and early American conflict.

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.