A 500-year-old sketch by Leonardo da Vinci has led to the remarkable discovery of hidden tunnels beneath Sforza Castle in Milan, Italy. The revelation confirms that da Vinci’s detailed ...

Leonardo da Vinci's centuries-old sketches reveal he may have understood key aspects of gravity long before Galileo, Newton and Einstein. When you purchase through links on our site, we may earn ...

Secret Passageways Recorded in Leonardo da Vinci’s Sketches Discovered Beneath a Medieval Castle in Milan Using ground-penetrating radar and laser scanners, researchers identified subterranean ...