Figure 8.
The image captures the perspective from within a spiral tunnel, showing smooth damp walls that curve inward as they extend towards a distant light source. The tunnel has a cylindrical shape with concentric rings, creating a sense of depth and perspective. Subtle textures and markings on the surface hint at the material composition, likely concrete, and the clean lines suggest the passage is well constructed and maintained. The lighting highlights the contours of the tunnel, enhancing the feeling of movement through the space.Main tunnel at the interface between west and central sections (photo credit: Matthew Joseph)