Academic painting

The Academic Painting (commonly known as Vitruvian Man in the real world) is a painting first introduced in. Made by the Italian polymath Leonardo da Vinci in about 1490. It is accompanied by notes based on the work of the Roman architect Vitruvius. The drawing, which is in ink on paper, depicts a man in two superimposed positions with his arms and legs apart and inscribed in a circle and square.

Authenticity
If there's a coffe stain spot in the top-right corner, it's the forgery.