REMOVE

1. concrete block
2. bushes
3. scaffolds
4. gardens (open spaces)
5. sky

WHAT

1. Visual Works (hierarchy n … (1)
2. artists (visual artists) (1)
3. beards (1)
4. benches (furniture) (1)

More 

WHERE

1. Westminster, Maryland (1)

WHEN

1. 1970 (1)
2. 1975 (1)
3. between 1970 - 1975 (1)