REMOVE

1. pillars
2. plants
3. stairs
4. yards (areas)
5. lamps (lighting devices)
6. bushes

WHAT

1. Visual Works (hierarchy n … (1)
2. artists (visual artists) (1)
3. branches (plant component … (1)
4. color film (film) (1)

More 

WHERE

1. Westminster, Maryland (1)

WHEN

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