Target Mark for Plane bombers

In Soviet Russia, circles triangle you. :)

(Dang. I'm old.)

there are one more place like this..if you can see there is a nº2 in the top of the triangle!
If you zoom out and go left..you will find another one whit nº3!
i´m trying to find the nº1 in this area but nothing yet!

maybe is a target zone or a code! for something..

sorry go right!! not left!

nobody, If you look closely, you will see ©200x Google, not nº2. That is a "Watermark". What you think you see is just an illusion.

actually ... there is a 2 at the top of the triangle. not the google watermark, just a big block 2.