REMOVE

1. neckties
2. eyeglasses
3. rivers
4. hats
5. backdrops
6. automobiles
7. woods (plant communities)

WHAT

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

More 

WHERE

1. New York, New York (1)

WHEN

1. 1964 (1)
2. ca. 1964 (1)