The image is a black and white illustration of a labyrinth, specifically the one found in S. Vitale, Ravenna. It's a circular design with a complex, winding path leading to a central point. The labyrinth is composed of a series of triangular and rectangular shapes creating the walls and pathways. The path is intricate and appears to be a single, continuous line that twists and turns towards the center. The style of the illustration suggests it may be a reproduction of a mosaic or a similar historical artwork. Below the image, there is a caption that reads 'Fig. 46. Labyrinth in S. Vitale, Ravennna. (Durand)'.