REMOVE

1. barriers
2. monuments
3. spouses
4. hats
5. tie clasps
6. suits (main garments)

WHAT

1. Visual Works (hierarchy n … (1)
2. artists (visual artists) (1)
3. baseball (field sport) (1)
4. benches (furniture) (1)
5. black-and-white film (1)

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WHERE

1. New York, New York (1)

WHEN

1. 1957 (1)