There are multiple structural and geometrical rocks who make remind to architectural forms on this picture taked by the Opportunity rover. Look at 6:00 on the upper left corner if you want a proof. The messages from people who tell “that’s just rocks” are not accepted. Yes this is rocks.. but ARTIFICIAL rocks. Image Source : marsrovers.jpl.nasa.gov MUSIC: 1th Song Artist: Nine Inch Nails / Song: Gone, Still 2th Song Artist: Massive Attack / Song: Everybody’s Got A Family 3th Song Unknown Artist – The Last Inch