Dia Art Foundation
Dia operates two museums—Dia:Chelsea (est. 1987, formerly the Dia Center for the Arts) in New York City and Dia:Beacon (est. 2003), the world's largest contemporary art museum, in Beacon, N.Y. Both are large, but the Beacon site, where some galleries are devoted to a single artist, contain unusually huge unbroken spaces ideal for exhibiting the frequently monumental and often minimalist (see minimalism) art and large-scale installations Dia favors. The foundation also funds massive land art projects in other parts of the country, such as Donald Judd's installations at Marfa, Tex.; Michael Heizer's City in Nevada; James Turrell's Roden Crater in Arizona; and Walter De Maria's Lightning Field in New Mexico (see land art). Dia's permanent collection includes pivotal works by such artists as Joseph Beuys, Louise Bourgeois, John Chamberlain, Dan Flavin, Judd, Agnes Martin, Gerhard Richter, Richard Serra, and Andy Warhol.

