REMOVE

1. sidewalks
2. black-and-white film
3. railings (balustrades)
4. driveways
5. houses
6. stairs
7. paths

WHAT

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

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WHERE

1. New York, New York (1)

WHO

1. Diane Still Knox; Diane K … (1)
2. Knox, Diane Still (1)

WHEN

1. 1958 (1)