From the 1950s onward, Calder turned his attention to international commissions and increasingly devoted himself to making outdoor sculpture on a grand scale from bolted steel plate. Some of these major commissions include: .125, for the New York Port Authority in John F. Kennedy Airport (1957); Spirale, for UNESCO in Paris (1958); Teodelapio, for the city of Spoleto, Italy (1962); Trois disques, for the Expo in Montreal (1967); El Sol Rojo, for the Olympic Games in Mexico City (1968); La Grande vitesse, which was the first public art work to be funded by the National Endowment for the Arts (NEA), for the city of Grand Rapids, Michigan (1969); and Flamingo, for the General Services Administration in Chicago (1973).
Major retrospectives of Calder's work during his lifetime were held at the George Walter Vincent Smith Gallery, Springfield, Massachusetts (1938); The Museum of Modern Art, New York (1943–44); Solomon R. Guggenheim Museum, New York (1964–65); The Museum of Fine Arts, Houston (1964); Musée National d'Art Moderne, Paris (1965); Fondation Maeght, Saint-Paul-de-Vence, France (1969); and the Whitney Museum of American Art, New York (1976–77). Calder died in New York in 1976 at the age of seventy-eight.
Hans Ulrich Obrist (born 1968, Zurich, Switzerland) is co-director of the Serpentine Galleries, London. Prior to this, he was the Curator of the Musée d’Art Moderne de la Ville, Paris. Since his first show ‘World Soup’ (The Kitchen Show) in 1991 he has curated more than 250 exhibitions. Obrist’s recent publications include A Brief History of Curating, Project Japan: Metabolism Talks with Rem Koolhaas, Everything You Always Wanted to Know About Curating But Were Afraid to Ask, Do It: The Compendium, Think Like Clouds, Ai Weiwei Speaks, Sharp Tongues - Loose Lips - Open Eyes - Ears to the Ground, along with new volumes of his Conversation Series.