- United States1,466,339 items
- Paper631,918 items
- Plant514,444 items
- Medicine438,609 items
- Photograph326,510 items
- Metal238,076 items
- Tradition200,596 items
- Ink192,853 items
- Alfred Eisenstaedt192,328 items
- Insects190,259 items
- Germany177,222 items
- Rock164,344 items
- New York150,954 items
- Glasses135,886 items
- United Kingdom133,665 items
- Entomology125,384 items
- Ralph Morse120,694 items
- Carl Mydans115,649 items
- Africa113,773 items
- Graphite111,434 items
- Mammal110,303 items
- Clay109,468 items
- Textile109,208 items
- Ralph Crane108,819 items