CMOR provides the ultimate fun learning experience for children, families, and Manhattan Project visitors. The mission of CMOR is to provide fun and diverse educational programs and exhibits emphasizing play and hands-on learning for all ages in arts, science, history, culture, and healthy living, while collecting and preserving objects in a historic Manhattan Project Community. The Children’s Museum was started in 1973 as a Girl Scout project by Troop 69 and its leader, Joyce Maienschein. It was formally opened on March 11, 1973 in the library of the former Jefferson Junior High School. In January 1974, the Museum moved to the former Highland View Elementary School. Nine years later, the museum purchased the building and land from the city of Oak Ridge, and now operates in 54,000 square feet with indoor and outdoor exhibits, classes, camps, and events for all ages.