A nonagenarian in the French town of Compiègne had had the painting hanging on the wall above her hot plate for decades, thinking it was a common Greek icon. The 8-by-10-inch image turns out to be Christ Mocked, part of a multi-panel work from about 1280 by the Italian painter Cimabue, and it’s expected to sell for more than €6 million at auction next month. – CNN