REMOVE

1. trees
2. trucks
3. houses
4. plants
5. automobiles
6. buildings (structures)
7. railroads

WHAT

1. Visual Works (hierarchy n … (1)
2. atmospheric perspective (1)
3. barriers (1)
4. black-and-white film (1)
5. domes (architectural elem … (1)

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WHERE

1. New Windsor, Maryland (1)

WHEN

1. 1967 (1)