Zhao Mengfu was the preeminent painter and calligrapher of the early Yuan dynasty (1279-1368). His Sheep And Goat scroll is estimated to be worth $100 million.
Courtesy of the Smithsonian Institution
Sculptor and writer Barbara Chase-Riboud is troubled by race-based groupings. She currently has an exhibition of work inspired by Malcolm X at the Philadelphia Museum of Art.
Courtesy of the Philadelphia Museum of Art
Anselm Kiefer's Velimir Chlebnikov, a series of 30 paintings devoted to the Russian philosopher who posited that war is inevitable, is on display at the Massachusetts Museum of Contemporary Art.
Museum director Alex Rueger (L) and Dutch artist Jeroen Krabbe stand in front of Vincent van Gogh's long-lost Sunset at Montmajour at the Van Gogh Museum in Amsterdam. The 1888 landscape painting from the height of the Dutch master's career had been abandoned for years in a Norwegian attic on the belief that it was a forgery.
Lex van Lieshout/AFP/Getty Images
A painting by German artist Franz Marc titled Horses in Landscape is projected on a wall during a press conference on the spectacular art find of nearly 1,500 works in Munich, Germany. Officials say they face a long investigation into the hoarded art.
Andy Warhol kept much of the ephemera of his daily life in boxes called TimeCapsules, now at the Andy Warhol Museum in Pittsburgh.This correspondence addressed to Warhol at his studio, The Factory, comes from Time Capsule 10.
Lauren Ober for NPR
A necklace of Saint Januarius, in gold, silver and precious stones, is displayed in Rome. The riches are from a treasure trove in Naples that is said to be worth more than the British crown jewels.
Gabriel Buoys/AFP/Getty Images