Public domain photos

The image shows a piece of paper with a drawing of a circle on it, which is believed to be Leonardo da Vinci's drawing of the universe. The paper is filled with intricate lines and shapes, and the text written on it is likely a description of the drawing.

The image shows a piece of paper with a drawing of a circle on it, which is believed to be Leonardo da Vinci's drawing of the universe. The paper is filled with intricate lines and shapes, and the text written on it is likely a description of the drawing.Open in library