Which country was the center for Western art in the Twentieth Century?

The United States emerged as the center for Western art in the Twentieth Century, particularly after World War II. New York City became a hub for innovative movements such as Abstract Expressionism, with artists like Jackson Pollock and Mark Rothko leading the way. This shift marked a departure from the traditional European artistic influences, establishing America as a significant force in the global art scene. The rise of pop art and other contemporary movements further solidified the U.S.'s central role in shaping modern art.