Henry Ford Museum at The Henry Ford
It's in Dearborn, Michigan and very interesting. The chair lincoln was killed in, is there. Also the car kennedy was killed in. But that's just two things, there's much more. There's a 90 acre replica of the "old america" filled with Thomas edison re-creations. Famous and classic cars, early 20th century airplanes, etc. It's been years since I've been there, but plan on going back. I remember how fun it was, and it's definatly worth it. Tons of history here, for the history buffs.