The enduring fame of the Old North began on the evening of April 18, 1775, when the church sexton, Robert Newman, climbed the steeple and held high two lanterns as a signal from Paul Revere that the British were marching to Lexington and Concord by sea and not by land. The Old North Church is officially known as Christ Church in the City of Boston. It was built in 1723, and is the oldest standing church building in Boston. In 1775, on the eve of Revolution, the majority of the congregation were loyal to the British King and many held official positions in the royal government, including the Royal Governor of Massachusetts, making Robert Newman's loyalty to the Patriot cause unusual.

The church offers tours and occasional recreational and educational events and performances.

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.

The Newseum—a 250,000-square-foot museum of news—offers visitors an experience that blends five centuries of news history with up-to-the-second technology and hands-on exhibits. The Newseum features seven levels of galleries, theaters, retail spaces, and visitor services. It offers a unique environment that takes museum-goers behind the scenes to experience how and why news is made.

The museum offers exhibits, tours, film and multimedia screenings, classes, lectures, and other educational and recreational events and programs. DC Metro area schools can schedule field trips with free admission for students; both box lunches and lunch vouchers are available with payment. Students may attend one 50-min., standards-aligned, educator-led class for free during their field trip (see the list of available classes, for grade levels 3-12); and educator-led tours are available for an additional charge.

To prepare for a field trip, teachers may attend an orientation session. Groups may also schedule professional development sessions for educators—subjects relevant to U.S. history include "The Battle for the Bill of Rights: The Free Press and the Founding of Our Nation," "The Photographic Revolution: The Ethics and Impact of Seeing the Story, From the Civil War to the Slums of New York to Today," "A Global Nation: The Free Flow of Information and Media Ethics," and "Making a Change: Civil Rights and the First Amendment."

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.

Generals George A. Custer, Nelson Miles and Philip Sheridan, Major Reno, William "Buffalo Bill" Cody and James B. "Wild Bill" Hickok are part of the history of this outpost on a military trail. Established in 1865 in the land of the Cheyenne and Arapaho, Fort Hays protected railroad workers and travelers on the Smoky Hill Trail. Visitors can see the military items and photographs at the visitor center, as well as the original 1867 blockhouse, furnished officers' quarters, the original 1872 guardhouse, and Native American artifacts.

The site offers exhibits, tours, and 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.