REMOVE

1. sky
2. windows
3. fields (land)
4. clouds
5. roads
6. black-and-white film
7. barns

WHAT

1. Visual Works (hierarchy n … (1)
2. buildings (structures) (1)

More 

WHERE

1. Westminster, Maryland (1)

WHEN

1. 1961 (1)
2. after 1961 (1)