Seattle Central Library - 11 floors of awesome architecture and design. The kids book room is bigger than some WHOLE libraries that I've been to. Been there four times and still haven't seen most of it!
Diagramming the Seattle Central Library, by OMA - I'm not sure who put together this analysis, but it deserves attention moreso than images of "funky spaces". OMA, to me, does a great deal of thinking about the programming of their projects - and this, more than the aesthetics, is what should be understood.