The Tech Museum of Innovation hosts the world premier of "Leonardo: 500 Years into the Future". The exhibit will be in San Jose September 27-January 4 and is being billed as an "exclusive US appearance". Over 200 artifacts will be on display including, models and paintings by his students. The hands-on gallery will let you articipate in hands-on design challenges based on Leonardo's engineering, scientific and art principles. Tickets are on sale now.