REMOVE

1. Construction
2. North American; American
3. North American; American
4. American, born Bulgaria

WHAT

1. Sculpture (1)
2. metal, cardboard, cloth, … (1)

WHERE

1. North American; American (1)

WHO

1. Albright-Knox Art Gallery (1)
2. Christo (1)

WHEN

1. 1964 (1)
2. 1964-65 (1)
3. 1965 (1)
4. American, born Bulgaria (1)