REMOVE

1. sky
2. shadows
3. sidewalks
4. trees
5. plants
6. shades (coverings)
7. automobiles

WHAT

1. Visual Works (hierarchy n … (1)
2. black-and-white film (1)
3. brick (clay product) (1)
4. bushes (1)

More 

WHERE

1. New Windsor, Maryland (1)

WHEN

1. 1966 (1)
2. after 1966 (1)