The National Science Museum collects and exhibits various scientific materials. The outdoor exhibition features large models including airplanes, propellers, airboats and more as well as rest areas. The special exhibition hall displays the work of various contest winners as well as rare products. The permanent exhibition hall offers approximately 4,200 works from 322 subjects in four different fields. The observatory hall in a dome-shaped structure has a 70-millimeter-long astro-vision as well as a planetarium. Various programs are offered including HAM radio, education and experience class, model plane class, and computer class, as well as other science education programs and events.