In the same building as the Science Fiction Museum is the Experience Music Project. It is a museum mixed with some interactive/learning rooms.
Michael Jackson outfit
Jimi Hendrix outfit
Busted up Hendrix guitars
Jimi Hendrix handwritten lyrics
There was a room that went in chronological order of the history or guitars. It was awesome. Pardon the blurriness of my pics. It was a dark room and flash photos were prohibited.
This was Kurt Cobain's guitar from the Smell like Teen Spirit video. His band Nirvana was from Seattle.
This was Eric Clapton's guitar from "Layla".
A quick video of the entrance display. Some of the instruments had moving pieces that moved on their own.