Designed by
Moshe Safdie, though his original plans were for a complete spiral with an office building at one end, the other terminating at the intended entrance. The way it looks now is more of a
coliseum with a second outer skin, joined to the main by a glass enclosed foyer, and the office building attached to this.
Pictures
http://piximg.corbis.com/cpe/256wm/10583936.jpg
http://piximg.corbis.com/cpe/256wm/10583937.jpg
http://piximg.corbis.com/cpe/256wm/10583938.jpg
http://piximg.corbis.com/cpe/256wm/10583940.jpg
http://my.netian.com/~fromb612/canada/gal2/library.jpg