Fort Smith National Historic Site encompasses the remains of two forts, as well as the Federal Court for the Western District of Arkansas, the circa 1838 Commissary Building, and a reconstructed gallows. The original fort, Fort Smith, was in use between 1817 and 1824. The Commissary Building supplied food to troops stationed at the fort, and is currently furnished to its 1850s appearance. The visitor's center, located within the historic barracks, courthouse, and jail, contains the courtroom of Judge Parker and exhibits on the Trail of Tears, the federal court, and the military. The Cherokee, Choctaw, Chickasaw, Muscogee Creek, and Seminole walked the Trail of Tears from their ancestral homelands to Indian Territory, an area defined by the U.S. government. The fort served as training grounds for both Mexican War and Civil War soldiers. By 1872, the military compound was transformed into a courthouse and jail. It continued to function as such until 1896. Judge Isaac Parker (1838-1896) is the most famous of the judges who served at this courthouse. Known as the "Hanging Judge," during his 21 years at the fort Parker ordered the execution of 160 men. All of these convictions were for rape or murder, both of which, in the period following the Civil War, were federally required to be punished by death. Many of these cases involved acts of violence between European Americans and Native Americans. The site collections include over 225,000 artifacts.

The visitor's center offers exhibits, films, and period rooms. The Commissary Building offers period rooms. The site offers a walking trail with wayside exhibits on the Trail of Tears, Junior Ranger activities, educational programs, anniversary lectures on punishment and specific executions, in-service educator workshops, and outreach presentations. Reservations and at least two weeks notice is required for school groups. The website offers historic images, an interactive panoramic photograph, a webcam, an artifact of the month, a pre-visit PowerPoint presentation, teaching modules, lesson plans, videos for rental, photograph exhibits for rental, and word searches.

Overlooking the Connecticut River in western Massachusetts, Springfield Armory National Historic Site offers the story of the nation's first armory, established in 1778.

The site offers exhibits, tours, a short film, educational programs, and occasional recreational and educational events (including living history events).

The Fort Vancouver National Historic Site commemorates the history of For Vancouver, the main supply depot of the British Hudson Bay Company's "Columbia Department" between 1824 and 1860. As such, the fort was central to a 700,000 mile fur trading network, which reached from Alaska to California and from the Rocky Mountains to Hawaii. The fort has also been used as the early end of the Oregon Trail and a U.S. Army Post. The community living in Fort Vancouver consisted of 35 distinct ethnicities. The site also operates the home of John McLoughlin, Chief Factor of Fort Vancouver between 1825–1845.

The site offers introductory talks at Fort Vancouver; audio tours, including a tour designed for children; self-guided tours; guided house tours; period rooms; an overnight living history program; hands-on exhibits; a children's hands-on archaeological program; Victorian handcraft, artillery, blacksmithing, carpentry, cooking, baking, and gardening demonstrations; Junior Ranger activities; and lantern tours. Reservations are required at both sites for school groups.

The Cane River Creole National Park contains Oakland and Magnolia Plantations. Oakland Plantation, dating to circa 1821, was the home of Jean Pierre Emmanuel Prud'homme. The structure is French Colonial in style with bousillage construction. Magnolia Plantation was built in the 1830s for Ambrose LeComte. Styles include Greek Revival and Italianate. Collection highlights include the last U.S. cotton gin with a wooden screw press located on its original site.

Both plantations offer ranger-led tours, self-guided tours, painting workshops, musicians, storytellers, craftsmen, Junior Ranger activities, and picnic sites. The website offers videos and historic photographs.

The Park includes the Peirce Barn and Mill and Old Stone House. Peirce Barn and Mill were built in the 1820s, and operated commercially until 1897. The U.S. Government acquired the mill as part of Rock Creek Park in 1892. The Old Stone House, one of the oldest known structures remaining in the nation's capital, is a simple 18th-century dwelling built and inhabited by common people.

NOTE: The Peirce Mill is currently closed for restoration.

The site offers tours, educational programs, and occasional recreational and educational events; the Old Stone House offers tours; the Peirce Barn offers tours.

The Dry Tortugas National Park consists of seven islands and the surrounding shoals and waters. First discovered in 1531 by Ponce de Leon, the Dry Tortugas are named after the then common sea turtles, or tortugas and the islands' lack of fresh water. The site includes Fort Jefferson. With its construction beginning in 1846, the invention of the rifled cannon rendered the fort ineffective; and construction ceased. The islands are notoriously difficult to navigate, and have been the site of centuries of shipwrecks.

The site offers guided tours, an orientation program, self-guided tours of Fort Jefferson, Junior Ranger activities, and a variety of outdoor activities. Note that the site is only accessible by boat or plane.

The Cape Lookout National Seashore is primarily a site for water recreation and nature viewing. However, the park does house the 1859 Cape Lookout Lighthouse, around which the staff organizes a number of interpretive programs.

The site offers a 26-minute film, a 16-minute version of the same film, talks, guided tours, and traveling trunks.

Fort Moultrie was one of the four major forts lining the entrance to Charleston Harbor. The fort was abandoned at the start of the Civil War by Union Troops in favor of Fort Sumter, which led to the first major action of the Civil War. Today, the fort has been restored to portray the major periods in its history, and visitors to the fort move steadily backwards from Fort Moultrie during World Wary II to the Palmetto-log fort of 1776.

The fort offers guided tours, interpretive activities, and field trip programs. The website offers basic visitor information, online historical documents, and a history of the fort. In order to contact the fort via email, use the "contact us" link located on the left side of the webpage.

The Fort Sumter National Monument commemorates the official initiation of fire of the Civil War. April 12, 1861, the Confederates directed the first shot at the Union's Fort Sumter, located in the Charleston Harbor. Exhibits discuss the growing tensions between the North and the South and their eventual turn to civil war, as well as the physical and social history of the fort itself. Also on location is the site of the first U.S. victory over the British Navy, which occurred at Fort Moultrie in 1776.

The monument offerings differ at each fort. Fort Moultrie offers a 22–minute introductory video at the visitor center, exhibits, self–guided tours, limited ranger–led programming, and Junior Ranger activities. Fort Sumter offers 10–minute talks by park rangers aboard the ferry, exhibits, self–guided tours, and Junior Ranger activities. Reservations are required for school groups at both sites. The website offers lists of relevant state education standards, lesson plans, activities, a teacher's guide, photo galleries, and a webcam.