In the upper left quadrant, on a dark row of stones is a light patch that looks a little like a skull? Maybe?
Dr. SkySkull in Mexico: The Great Pyramid of Cholula
Dr. SkySkull in Mexico: The Great Pyramid of Cholula
In the upper left quadrant, on a dark row of stones is a light patch that looks a little like a skull? Maybe?
Skulls in the Stars 
