Over the last 15 years, prices paid at auction houses for paintings, sculptures and other art have skyrocketed, setting ever-higher bars for the most expensive art sold at auctions. Owning art has ...

An art handler views Portrait of Elisabeth Lederer by Gustav Klimt during a press preview at Sotheby’s in New York City on Nov. 7. (Alexi Rosenfeld/Getty Images) A painting by Gustav Klimt just became ...

Imagine finding a super-valuable painting in your attic or at a flea market. While the most expensive paintings ever sold tend to be famous pieces everyone watches, some of them were rediscovered ...