REMOVE

1. plants
2. trees
3. clouds
4. farms
5. houses
6. roads
7. black-and-white film

WHAT

1. Visual Works (hierarchy n … (1)
2. banks (landforms) (1)
3. barns (1)
4. buildings (structures) (1)

More 

WHERE

1. Maryland (1)

WHEN

1. 1961 (1)
2. after 1961 (1)