REMOVE

1. trees
2. factories (structures)
3. plants

WHAT

1. automobiles (1)
2. black-and-white film (1)
3. buildings (structures) (2)
4. campuses (1)
5. cityscapes (representatio … (1)
6. coastlines (1)
7. colleges (buildings) (1)
8. color film (film) (1)
9. cranes (equipment) (1)
10. exterior views (2)
11. fields (land) (1)
12. forests (plant communitie … (1)
13. freight cars (1)
14. hills (1)
15. landscapes (representatio … (1)
16. machinery (1)
17. neighborhoods (1)
18. oceans (1)
19. quarries (extracting comp … (1)
20. railroads (1)
21. roads (1)
22. rock (1)
23. rooftops (1)
24. seascapes (1)
25. service stations (1)
26. sheds (storage structures … (1)
27. ships (1)
28. shipyards (1)
29. signs (declatory or adver … (1)
30. sky (1)
31. soil (1)
32. streets (1)
33. towers (building division … (1)
34. trains (vehicle groupings … (1)
35. trucks (1)
36. utility poles (2)
37. Visual Works (hierarchy n … (2)
38. windows (1)

WHERE

1. San Francisco, California (1)
2. Westminster, Maryland (1)

WHEN

1. 1970 (1)
2. 1975 (1)
3. ca. 1970 (1)