The National Watch and Clock Museum, according to its website, houses "the largest and most comprehensive horological collection in North America," with over 12,000 artifacts. The museum's holdings focus on 19th-century American clocks and watches, but the exhibits proceed chronologically through the development of timekeeping devices worldwide.

The museum offers exhibits, self-guided and guided tours for school groups, hands-on programs for school groups, youth activity kits and traveling trunks, research library access, workshops, and other recreational and educational events. It also offers a free museum pass for educators.

The Heritage Center preserves and presents the history of the Cherokee County region, displaying artifacts from pre-contact, the Civil War, World War II, and the timber industry, as well as other times and subjects.

The museum offers exhibits.

According to its website, the Department of the Interior Museum "educates the public and DOI employees about the current missions and programs of the Department of the Interior, the history of the Department, and the art and architecture of its headquarters building in Washington, DC." It maintains some original 1930s exhibits as well as updated exhibits, and the building features murals and other works of art.

The museum offers exhibits, guided tours (which may be accompanied by scheduled outside speakers), lectures, workshops for children, and occasional recreational and educational events.

The Black Hills Mining Museum preserves and presents the history of the mining industry in the Black Hills region, from its earliest days to the present.

The museum offers exhibits, guided tours of a simulated mine, and gold panning.

The Ellis County Museum, housed in an 1889 structure, presents and preserves the history of Ellis County, TX.

The museum offers exhibits and occasional recreational and educational events.

The South Carolina State Museum, housed in the 1893 Columbia Mill textile building, allows visitors to explore art, cultural and natural history, and science and technology.

The museum offers exhibits, state-curriculum-aligned self-guided and guided tours for school groups (box lunches and on-site space for lunch available), outreach presentations (including presentations with a portable Starlab planetarium), programs for homeschoolers, professional development for educators, summer camps, and other recreational and educational events.

The National Museum of American Jewish History traces the history of the Jewish people in the United States, while also examining issues of ethnicity in the U.S.

The museum offers exhibits; guided tours for school groups (accompanied by pre-visit materials); guided city tours for fifth grade and up; poetry-writing and -reading workshops for all ages; "Memory Keepers," a program which guides fifth through eighth graders through the processing of designing a museum exhibit; and outreach presentations.

Science Museum Oklahoma invites visitors to explore the physical sciences, invention, and technology. The exhibit "Destination Space" looks at space exploration, while "Aviation" follows the history of flight, and a model train exhibit recreates a town from 1900 to 1950. The museum also houses the International Gymnastics Hall of Fame, honoring the sport of gymnastics.

The museum offers exhibits, demonstrations, summer camps, planetarium shows, dome-screen film screenings, overnight in-museum programs, and other recreational and educational events.

The Works encompasses a five-acre campus at which visitors can explore the intersections of art, history, and technology.

The museum offers exhibits, lectures, and other recreational and educational events.

The National Inventors Hall of Fame honors the accomplishments of inventors and the history of human invention.

The Museum offers exhibits, camps, and other recreational and educational programs.

As of NHEC's last visit to the website (5/21/09), the Museum building was currently closed.