This incredible Photoshop action instantly recreates an authentic-looking Leonardo DaVinci drawing from any photo ... Glassdoor CEO 'loves' to ask this simple question during job interviews ...

In a twist worthy of a Renaissance mystery, Leonardo da Vinci's sketches have revealed hidden secrets beneath the Sforza Castle, sparking intrigue and wonder.

A drawing of a bear's head by Leonardo da Vinci sold for a record £8.8m ($12.1m) at a London auction. Measuring just 7x7cm, Head of a Bear is more than 500 years old. The sale has surpassed the ...