Lucio Fontana, Concetto Spaziale, Natura, 1959-1960. Terracotta 23 1/2 x 22 1/2 x 24 1/2 inches. Private Collection. Courtesy Dominique Lévy Gallery, New York.

Lucio Fontana, Concetto Spaziale, II Cielo di Venezia, 1961. Acrylic on canvas 59 x 59 inches. Private Collection. Photo © Ellen Page Wilson / Courtesy Dominique Lévy Gallery, New York.

Yves Klein, Untitled Sponge Relief, 1957. Synthetic resin, natural sponges, and pebbles on board, 78 3/4 x 39 3/8 inches. Private Collection. © Yves Klein, Artists Rights Society (ARS), New York / ADAGP, Paris 2013 / Courtesy Dominique Lévy Gallery, New York.

Yves Klein, Untitled, 1956. Dry pigment and synthetic resin on gauze laid on panel 30 1/2 x 21 inches. Fondazione Lucio Fontana, Milan. © Yves Klein, Artists Rights Society (ARS), New York / ADAGP, Paris 2013 / Courtesy Dominique Lévy Gallery, New York.

Cy Twombly, Untitled (Bolsena), 1969. Oil based house paint, wax crayon on canvas 76 3/4 x 87 1/2 inches. Yageo Foundation Collection, Taiwan. Courtesy Dominique Lévy Gallery, New York.

Cy Twombly, Sunset, 1957. Oil based house paint, wax crayon, colored pencil, lead pencil on canvas 56 1/4 x 70 3/4 inches. Private Collection. Courtesy Dominique Lévy Gallery, New York.