[File:WidenerLibraryUnderConstruction 1913Dec4 cropped.jpg|thumb|right|upright=1.4 |link=http://commons.wikimedia.org/wiki/File:WidenerLibraryUnderConstruction_1913Dec4.jpg |The stacks framework (visible within unfinished walls in this December 1913 view) of Harvard's Harry Elkins Widener Memorial Library supports the roof and topmost level of offices and special collections as well as shelves holding 3million volumes. ]]