A famous abstract painting by the Dutch artist Piet Mondrian has been hanging upside down in museums for more than 75 years — after it was first displayed the wrong way at the Big Apple’s MoMA ...

A painting by New York abstract artist Barnett Newman sold for a record $43.8 million at Sotheby's in New York. The 8.5ft by 10ft canvas, Onement Vi, a 8.5ft by 10ft dark blue canvas with Newman's ...

Tucked away beside a dry cleaners in a dark Paris courtyard, the firm that supplied Impressionist master Edgar Degas with the brilliant pastel colors used in some of his most famous pictures is ...