"The Battle of Fort Pulaski in April 1862 marked a turning point in military history. It featured the first significant use of rifled cannons in combat." In addition to surprising military strategists worldwide, the battle marked a major Union victory along the coast of Georgia. This was an immensely significant development towards the success of the Union naval blockade - one of the key points of the Civil War. The fort has been restored to its pre-Civil War condition, and offers a variety of interpretive and educational programs in order to show visitors what life was like in the fort during the Civil War prior to its fall.

The site offers detailed historical information regarding the fort, visitor information, an online version of the park newsletter, an events calendar, and an online bookstore. In order to contact the park by email, use the "contact us" link located on the left side of the webpage.

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 Ulysses S Grant National Historic Site commemorates the lives of Ulysses S Grant (1822-1885), general-in-chief of the Union army and 18th President of the United States, and his wife Julia Dent. Dent's family home, White Haven, is the centerpiece of the park. Other structures include an interpretive museum housed in the historic Grant stable and a visitors' center.

The site offers a 16-minute introductory film, guided tours of White Haven, Junior Ranger activities, and a history reading program compliant with state educational standards.

The Arkansas Post National Memorial commemorates the first European colony to be built in the Mississippi River Valley. The post was established by the French in 1686 on the site of a Quapaw village. Today the site presents its more than 300 years of social history. The post played a part in the fur trade, Civil War, and Revolutionary War—most specifically the 1783 Colbert Raid, the singular Revolutionary War military action to occur in Arkansas.

The site offers an introductory video, guided tours, self-guided tours, exhibits, musket and cannon demonstrations, Junior Ranger activities, educational programs, and outreach programs. Reservations are required for guided tours and all educational programming. The website offers a maze and word search.

The 17,500-acre Ebey's Landing National Historical Reserve contains 18 working farms and 400 historical structures. Notable sites include Fort Casey State Park, Fort Ebey State Park, and a historical museum. Fort Ebey remains from the days of World War II.

The reserve offers exhibits.

The Guilford Courthouse National Military Park commemorates the largest Revolutionary War battle fought in the Southern Campaign, the March 15, 1781 Battle of Guilford Courthouse. At the altercation, Major General Nathanael Greene led the American troops, while Lord Charles Cornwallis led the British. The battle was a success for the outnumbered British, who forced the Americans to retreat. However, the loss of roughly one-fourth of their force led Cornwallis and the British to abandon their attempts to overtake the Carolinas. Cornwallis is best remembered as the general who lost the American colonies. It is of note that Cornwallis fought in the revolution despite misgivings about the harshness of British rule over the colonies.

The park offers exhibits; a 32-minute introductory film; a 10-minute animated map program on battle tactics; a walking, biking, or driving self-guided tour with wayside exhibits; 28 monuments; Junior Ranger activities; interpretive talks; musket firing demonstrations; a scavenger hunt; and an educational program. The website offers digital exhibits, historic photographs and postcards, lesson plans, a teacher's guide to the American Revolution, a timeline of the Revolutionary War, and two films for rental. Visitors with visual impairment can participate in a 20-minute tactile map program.

Capitol Hill Parks includes all parkland between the 2nd streets NE and SE and the Anacostia River. The four major parks in this space are the Folger Park, which contains numerous examples of historic architecture; Lincoln Park, which contains memorials to Abraham Lincoln (1809-1865), 16th President of the United States, and Civil Rights activist Mary McLeod Bethune (1875-1955); Marion Park; and Stanton Park, which houses a statue of General Nathanael Greene (1742-1786), the Revolutionary War leader who drove the British out of Georgia and the Carolinas in 1782.

The site offers tours upon request.