Lev13than writes "Art historians working in Florence's city hall claim to have found evidence of Leonardo da Vinci's lost Battle of Anghiari fresco. Painted in 1505, the fresco was covered over by a larger mural during mid-16th Century palace renovations. Historians have long speculated that the original work was protected behind a false wall. Attempts to reveal the truth have been complicated by the need to protect Vasari's masterpiece, Battle of Marciano, that now graces the room. By drilling small holes into previously-restored sections of Vasari's fresco, researchers used endoscopic cameras and probes to determine that a second wall does exist. They further claim that the hidden wall is adorned with pigments consistent with Leonardo's style. The research has set off a storm of controversy between those who want to find the lost work and others who believe that it is gone, and that further exploration risks destroying the existing artwork."