The 157-foot-high lighthouse is still an aid to navigation. Visitors who climb the 199 steps to the top of the lighthouse are rewarded with a panoramic view of the Cape May peninsula. The first known lighthouse at Cape May was built in 1823. By 1847 a new lighthouse was erected on a high bluff; however, due to the encroaching sea and poor building design it was eventually dismantled. Built in 1859, the current lighthouse used the original bricks of the 1847 lighthouse. Also on the site is a World War II bunker, built as part of the Harbor Defense Project of 1942.

The site offers exhibits, tours, and educational and recreational events.

Glimpses into two of the U.S.'s wars can be found in one historic site within the city of Kinston. Here visitors can explore the celebrated life of Richard Caswell, the first governor of the independent state of North Carolina. They can also see up close the remnants of the ironclad gunboat CSS Neuse, a product of the Confederate Navy's ill-fated attempt to regain control of the lower Neuse River and retake the city of New Bern during the Civil War.

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

Castle Air Museum presents history through the display of restored historic aircraft. Visitors can stand under the wing of a Convair RB-36H Peacemaker, a Boeing B-52, or of many other planes.

The museum offers exhibits, tours, and occasional recreational and educational events.

Fort Foster was one of the original Seminole War forts constructed in Florida during the early 1800s. Today a replica wood-picket-style fort has been constructed on the original site. Park rangers provide tours, and explain the Fort operations and living conditions, as well as telling the history of the Seminole Wars in Florida. The interpretive center contains exhibits about the fort, the Seminoles, and the Second Seminole War.

The park offers exhibits, tours, and occasional living history events.

The historic ruins of a World War II coastal defense installation coupled with the steep surf-pounded cliffs, deep spruce forests, wildflower-laden meadows, and a lake containing trout offer the public an opportunity to learn of the events of World War II while enjoying the natural beauty of the park. A museum in the park further explores the World War II history of the site.

The museum offers exhibits.

With three permanent collections and a membership in the Smithsonian Affiliations Program, the Museum offers a wide range of exhibits, including a glimpse into the daily lives of soldiers during the Civil War; a reproduction of a turn-of-the-century locomotive factory; and an exciting depiction of the Civil War's Great Locomotive Chase.

The museum offers exhibits, tours, lectures, workshops, and other educational and recreational programs.

The Titan Missile Museum is the only publicly accessible Titan II missile site in the nation. Visitors can tour the underground missile site and see the 3-ton blast doors, the 8-foot-thick silo walls, and an actual Titan II missile in the launch duct. They can also visit the launch control center and experience a simulated launch.

The museum offers tours and educational and recreational programs.

The Society maintains the Los Alamos Historic Museum and Bookshop as well as the Los Alamos Historical Archives. The Los Alamos Historical Museum is dedicated to preserving, protecting, and interpreting the history of Los Alamos. Housed in the Guest Cottage of the Los Alamos Ranch School—a favorite place of Gen. Leslie Groves during the Manhattan Project—the museum features exhibits on local geology, anthropology, the 1917 elite Ranch School, and the Manhattan Project, as well as changing exhibits.

The society offers lectures and educational programs; the museum offers exhibits, tours, and educational programs.

At the Museum, visitors can experience hands-on history displays on naval aviation and see more than 150 restored aircraft representing Navy, Marine Corps and Coast Guard aviation. They can feel the sensations of flight in a flight simulator or visit the Naval Aviation Memorial Theater and view an IMAX film.

The museum offers exhibits, tours, film screenings, and educational and recreational programs.

USS Constellation, the last all-sail warship built by the U.S. Navy, is open to the public as a museum in Baltimore's Inner Harbor. The USS Constellation Museum invites guests to discover life on board the only Civil War era vessel still afloat and explore the ship's maritime history.

The ship offers exhibits, tours, demonstrations, living history events, lectures, and other educational and recreational programs.