REMOVE

1. stairs
2. moustaches
3. partial views
4. arcades (structural assembli …
5. benches (furniture)

WHAT

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

More 

WHERE

1. New York, New York (1)

WHEN

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