In the mid 1960s, Robert Grosvenor (born 1937) created several groundbreaking fiberglass and plywood sculptures, which made an unprecedented use of the gallery space. Grosvenor referred to his works as  ”ideas, which operate between the floor and ceiling”. Indeed, his strikingly modern, futuristic, and perceptually perplexing works seem to hover in space magically while clearly displaying their means of cantilevered suspension. Robert Grosvenor’s Tenerife, 1966 is on continuous view as part of the “Singular Visions” exhibition at the Whitney Museum of Art, NY.