Stereoscopy (also known as 3D imaging) is a technique that is used to create the illusion of depth in an image i.e., to create 3D images. So in other words, Mona Lisa appears to be the earliest ...

Tracings or sketches might miss nuances in the rocks that 3D images can bring to life. An old technique reveals new details Dating back to the 1800s, stereoscopic photography itself is not new.