- United States1,436,413 items
- Map312,484 items
- Paper205,039 items
- Fashion200,311 items
- Alfred Eisenstaedt192,327 items
- Photograph171,175 items
- Metal160,216 items
- Insects153,352 items
- Climate150,369 items
- New York137,898 items
- Plant135,902 items
- Glasses133,249 items
- Germany132,135 items
- Radiation125,902 items
- Universe125,239 items
- Entomology125,011 items
- Ralph Morse120,694 items
- Civilization120,287 items
- Robotics116,745 items
- Carl Mydans115,654 items
- Spaceflight114,181 items
- United Kingdom112,774 items
- Technology111,081 items
- Ralph Crane109,019 items