Photographer Raising $270,000 for a Camera That Can See through Walls
In 1505, Leonardo da Vinci painted a vast mural in Florence's town hall titled "The Battle of Anghiari" -- believed to be one of his greatest works. After being on display for more than 40 years, the unfinished painting was lost when the hall underwent renovations and new murals by Giorgio Vasari were added. There are no known records explaining what happened to the piece, but many people believe that it is currently hidden behind one particular mural called "Battle of Marciano in Val di …