[AndrewC]

What about the appearance of the face of Jesus or Mary that no one drew on a building, rock etc.? How does Andrew tell whether someone drew those or not?

I suggest you avoid people selling New York bridges or prime real estate in Florida.

[shubi]

I suggest you be more logically consistent.

You tell one person you can't tell the difference between a design and non-design, then you avoid answering how you tell in a known naturally designed drawing.