Circular diagram with text and an image of an apple and a slice of…

Black and white drawing of a man in a top hat and a woman in a dress…

Chinese painting of a landscape with a house in the foreground

Drawing of a white flower with green leaves on a piece of paper

Black and white photo of a large building in the middle of a field

Person walking down a snowy path in the woods

Black and white drawing of a machine with two cylinders on it

Open book with a drawing of a train track on it

Painting of a man in a red coat