My fiancee and I are flying into Seattle for our honeymoon. Headed up to Victoria and then cruising to Alaska. Then touring Seattle for the last leg of our trip, before flying home. Should be fun.
Right now I'm trying to find the unique stuff about Seattle. So far Boeing seems to be the only truly unique thing I know of. That and Microsoft, but I don't know how you can tour Microsoft. Space Needle--uh, it's a tower. If you locals know of other cool, unique stuff, that's great!
I'll offer reputation to anyone who comes up with cool Seattle-only things to do! Man, what a deal!