REMOVE

1. clouds
2. plants
3. sky
4. yards (areas)
5. black-and-white film
6. utility poles

WHAT

1. Lincoln Continental autom … (1)
2. Visual Works (hierarchy n … (1)
3. automobiles (1)
4. beaches (1)
5. bridges (built works) (1)

More 

WHERE

1. Newport, Rhode Island (1)

WHO

1. Still, Clyfford (1)
2. Still, Patricia (1)

WHEN

1. 1968 (1)
2. 1968 June 3-6 (1)