Greenfield Village is a collection of nearly 100 historic buildings on a beautiful 200 acres. It was established in 1933 by industrialist Henry Ford, who relocated or reconstructed buildings there from throughout the United States. The village includes the actual birthplaces, homes, or workplaces of famous people like Ford, Robert Frost, and Wilbur and Orville Wright. Also featured are Thomas Edison’s laboratory from Menlo Park, a courthouse where Abraham Lincoln practiced law, a steam-powered paddleboat and several locomotives, and representative English and early American homes, public buildings, and craft shops. Basically, instead of something reasonable like stamps or coins, Henry Ford decided to collect his friends' houses. The result is an eclectic "living museum" where we can enjoy the payoff of his possible insanity, and some really great ice cream.
For the "smaller" objects that Henry Ford fancied, including busses and airplanes, visit The Henry Ford Museum, located next to Greenfield Village. Exhibits include Driving America with automobile firsts on display, as well as mid-century muscle cars. They have several actual vehicles used by presidents, including the 1961 Lincoln Continental limousine that JFK was assassinated in. On the unfortunate note of assassination, they also have the chair Abraham Lincoln was shot in. You can board the actual bus where Rosa Parks refused to give up her seat. There is a cool airplane exhibit (ask Reid about that one), and for some reason an Oscar Meyer Wienermobile. I never really got why there's a giant hotdog on wheels in the museum, but it seems to be quite popular! (Maybe I should've stopped to read the information placard...)