On a wall space of some thirty square metres, and an average ceiling height of 3.5 metres, the Apse contains over a thousand figures. They include nearly 500 animals and 600 geometric signs or lines. They appear on the walls and ceiling, and with no interruption. Their density increases at the entrance at the far end, and reaches its peak in the Apsidiole, which is located at the base of the Shaft in the farthest part of this gallery. The very soft limestone surface provides a partial explanation for such a graphic outpouring. Lascaux's fame is essentially based on the paintings in the Hall of the Bulls, the Axial Gallery and the Nave. And yet, if we count the number of figures in the Apse, the Passageway, the Nave and the Chamber of the Felines, we see that the art of Lascaux is dominated by engravings.