The Menil Collection, located in Houston, Texas, USA, refers either to a museum that houses the private art collection of founders John de Menil and Dominique de Menil, or to the collection itself of approximately 17,000 paintings, sculptures, prints, drawings, photographs and rare books. One of the largest and most wide-ranging private art collections in the United States, it includes the early to mid-twentieth century works of Yves Tanguy, René Magritte, Max Ernst, Man Ray, Marcel Duchamp, Henri Matisse and Pablo Picasso, among others. The museum also maintains an extensive collection of pop art and contemporary art from Jackson Pollock, Andy Warhol, Mark Rothko, Robert Rauschenberg, Vija Celmins and Cy Twombly, Jr., among others.