Artifacts (2-D and 3D) are in the multi-millions. At any given time about 10% of the collections are on display due to limitations of exhibition space. Include motorized and non-motorized transportation vehicles, buildings, industrial and non-industrial machines, furniture and appliances, apparel,decorative art, fine art,advertising art, photography and documents, among other things. Age of artifacts stretches over at least 300 years.
National treasures include: Presidential limos, the Rosa Parks bus, the Lincoln chair, Buckmisnster Fuller's Dymaxion House, the Wright brothers' cycle shop and home, Edison's Menlo Park laboratory, the Noah Webster House.