The Newark Museum of Art (formerly known as the Newark Museum), in Newark, Essex County, New Jersey, United States, is the state's largest museum. It holds major collections of American art, decorative arts, contemporary art, and arts of Asia, Africa, the Americas, and the ancient world. Its extensive collections of American art include works by Hiram Powers, Thomas Cole, John Singer Sargent, Albert Bierstadt, Frederick Church, Childe Hassam, Mary Cassatt, Edward Hopper, Georgia O'Keeffe, Joseph Stella, Tony Smith and Frank Stella.