REMOVE

1. trees
2. plants
3. sidewalks
4. drinking fountains
5. buildings (structures)
6. 1966

WHAT

1. Visual Works (hierarchy n … (1)
2. automobiles (1)
3. branches (plant component … (1)
4. bushes (1)

More 

WHERE

1. New Windsor, Maryland (1)

WHEN

1. after 1966 (1)