Absolutely stunning builidng by Shigeru Ban. The roof structure of interwoven wood beams and steel was inspired by Chinese hats.
I’m not sure the roof and what it covers interact all that well - there is too much contrast between the materials to convey a unified program. I really do dig the organic flow of the roof - so much more elegant than anything Gehry can muster. (Click the picture to see more, from designboom.com).