Art Gallery of Ontario, Canada (2011); Museum Morsbroich, Leverkusen, Germany (2004–05); Fundació Antoni Tàpies, Barcelona, Spain (1996–97, traveled); Museo Rufino Tamayo, Mexico City, Mexico (1991–92, traveled); Walker Art Center, Minneapolis, Minnesota (1985); Albright-Knox At Gallery, Buffalo, New York (1983, traveled); Fundación Juan March, Madrid, Spain (1980); the William Benton Museum of Art, University of Connecticut, Storrs (1979); Royal Academy of Art, London, England (1978); Musée d’art moderne de la ville de Paris, France (1977); Stadtisches Kunsthalle, Düsseldorf, Germany (1976); Museo de Arte Moderna, Mexico City, Mexico (1975); Princeton University Art Museum, New Jersey (1973); David Mirvish Gallery, Toronto, Ontario, Canada (1973); The Museum of Fine Arts, Houston, Texas (1972–73, traveled); The Museum of Modern Art, New York (1965); The Phillips Collection, Washington, D.C. (1965); Smith College Museum of Art (1963); Pasadena Art Museum, California (1962); Galerie Heinz Berggruen, Paris, France (1961); Bennington College, Bennington, Vermont (1957); Peggy Guggenheim’s Art of this Century Gallery, New York (1944).