If you want to look at photographs that are not digitized, you will need to visit the archives. In order to see these photographs you will need to know some information about the items, including, the Collection Name, the Collection or Accession Number, and the Box Number.
If, for example, you want to see the print of the Leif Erikson Statue, these are some pieces of information you need to put on a callslip to have the archivists page it for you:
1) Collection Name: August Werner Photographic Collection
2) Collection of Accession Number: PH Coll. No. 0708
3) Box Number: Folder 2/Items 6-13
Parts of many photographic collections have been made available through UW Libraries' Digital Collections. The links below take you directly to some of those collections.