This relates to mounds in the Cydonia area and how they form patterns when you draw lines between them. One theory is they may have been used as survey marks to build structures there.
The first step is to show you the marks, to confirm for
yourself they exist, and to illustrate how they form patterns with each
other.
There are 3 marks in a row here.
The marks are now superimposed with white dots to make them
easier to see. Note the area has very few rocks of this size, so it is unlikely
this result is by chance. 
The line goes perfectly through the center of all 3 marks. Such an accurate line up is very unlikley.