My wife and I visited the Space Needle several years ago. Wonderful views. We also ate in the revolving restaurant. It was pricey, but hey, how often will you get to do that. I don't remember a Science Fiction Museum. I remember an "educational" Science Museum and a Music Museum. The Music Museum was fairly new and it was in an odd shaped building. We enjoyed Pike Street Market and even saw the original Starbucks, at least I think it was the first. All my wife knew was that a Tom Hanks movie was filmed there.