REMOVE

1. railroads
2. sky
3. houses
4. roads
5. rock
6. 1970

WHAT

1. automobiles (1)
2. black-and-white film (1)
3. buildings (structures) (1)
4. bushes (1)
5. churches (buildings) (1)
6. columns (architectural el … (1)
7. exterior views (1)
8. fences (1)
9. horses (animals) (1)
10. men (male humans) (1)
11. monuments (1)
12. parking lots (1)
13. signs (declatory or adver … (1)
14. statues (1)
15. towers (building division … (1)
16. trees (1)
17. Visual Works (hierarchy n … (1)
18. windows (1)

WHEN

1. 1967 (1)
2. ca. 1967 (1)