Influenced by Mexican and Native American art, Pollock popularized action-painting and drip style, as seen in Number 7, 1951. Pollock-Krasner Foundation, National Gallery of Art/Artists Rights Society hide caption

itoggle caption Pollock-Krasner Foundation, National Gallery of Art/Artists Rights Society

An exhibit at the Louvre Museum in Paris explores American landscape painting. Here, the museum's director, Henri Loyrette, looks at the oil paintings of Thomas Cole (1801-1848), known for his realistic and detailed works. Francois Mori/AP hide caption

itoggle caption Francois Mori/AP

About 1,200 tiny custom-made cars zoom around Metropolis II. If there's an accident, the sculpture comes with nearly 11,000 more toy cars, ready to hit the road. Courtesy The Los Angeles County Museum of Art hide caption

itoggle caption Courtesy The Los Angeles County Museum of Art

A painting by Michelet "Najee" Calice, one of the artists featured in the exhibit. Courtesy Of The Artist hide caption

itoggle caption Courtesy Of The Artist

Abstract expressionist artist Helen Frankenthaler, pictured above in 1956, adopted Jackson Pollock's technique of painting canvases laid flat on the floor. She sought to "marry" the paint with the canvas, she said. Gordon Parks/Time Life Pictures/Getty Images hide caption

itoggle caption Gordon Parks/Time Life Pictures/Getty Images

Anthropologist Nicholas Conard (left) and filmmaker Werner Herzog examine artifacts from the Chauvet caves in southern France. Mark Valesella/IFC Films hide caption

itoggle caption Mark Valesella/IFC Films

Woman I (1950-52) is one of the works featured in de Kooning: A Retrospective. The exhibit is on display at the Museum of Modern Art through Jan. 9, 2012. John Wronn/Museum of Modern Art hide caption

itoggle caption John Wronn/Museum of Modern Art