Richard C. Hoagland: Mars Face Rock
When I first saw this pic, it did not shock me, it did not amaze me, it reaffirmed my guy feeling that Mars had a lot more to offer than microbes in frozen lakes at the north pole. he-he
...and indeed it did. You can see the face rock in the upper right on this picture, it gives you better perspective as to how large it is. Now look at the pyramids on the left and the right. The pyramid at the bottom right, according to scientific measurements is larger than our largest pyramid here on Earth. Here is Richard C. Hoagland's biography