This is probably the most complex model I've designed (and built) up to now. The Guggenheim Museum Bilbao is one of the most spectacular buildings of the recent decades. Its style of deconstructivism and seemingly random but also very organic curves make for a magnificent view. It was a real challenge to build this in LEGO.  I decided to use white bricks for the titanium surface - metallic parts are too rare in LEGO and grey seems too dull for the highly reflective surfaces. The building is surrounded by water and some large works of art, most noticeable the tulips (represented by violet cherries in the model) and the puppy by Jeff Koons.  More pictures can be found here if you are interested: http://www.brickshelf.com/cgi-bin/gallery.cgi?f=571042