This specific piece of art is what is known as Pop-art. It was done by a very popular pop-artist known as Andy Warhol.
This is one of the first drawings of the human anatomy by Leonardo Da Vinci. If nit for this drawing, as well as several others we would not have the extensive knowledge of the human body as we do today.
This is Michelangelo's Pieta. The Pieta is completely made of marble and it signified Mary holding her crucified sons body.
This is Raphael's School of Athens. It was rumored that he had every ancient Greek Philosopher in the painting and included himself as well.