- 8301 1024x600 atom, molecule, element
- 11143 1024x600 atom, rings, stones
- 13858 1024x600 atom, molecule, chemistry
- 9362 1024x600 atom, sphere, lines
- 22151 1024x600 atom, chemistry, molecule
- 24383 1024x600 nucleus, atom, red
- 2044 1024x600 building, windows, architecture
- 20415 1024x600 chlorofluorocarbons, dichlor, molecule