REMOVE

1. fences
2. barriers
3. libraries (buildings)
4. eyeglasses
5. moustaches
6. stairs
7. 1964

WHAT

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

More 

WHERE

1. New York, New York (1)

WHEN

1. ca. 1964 (1)