"This is an incredible rediscovery of a very personal creation from The Netherlands' most famous painter. It's as exciting as discovering a lost Shakespeare sonnet or finding a new drawing by Leonardo da Vinci," said Timothy Standring, the Gates Foundation curator of painting and sculpture at the DAM. "Rembrandt Laughing," which is on loan to the DAM from a private collection, will be on display through November 30. In the meantime, check out the video about it above, produced by the DAM.