THE PURPOSE OF THIS WEB SITE IS TO SHOW THE VIEWER DETAILS NOT OTHERWISE SEEN WITH CASUAL VIEWING OF RAW IMAGES FROM THE ROVERS ON MARS.  CASUAL VIEWING WILL ONLY SHOW ROCKS, SAND, AND LANDSCAPES THAT APPEAR TO BE NATURAL FORMATIONS. THE RAW IMAGES POSTED BY JPL ARE SOMETIMES BLURRY,  ADDITIONAL PIXELS, NOISE MASKING, AND MANY IMAGING CONDITIONS MAY HAVE BEEN ADDED TO OBSCURE DETAILS OF ANCIENT TO MODERN CIVILIZATIONS.  NO ADDITIONAL OBJECTS HAVE BEEN ADDED TO THE ORIGINAL RAW IMAGE BY THIS WEBMASTER, EXCEPT FOCUS, ZOOMING, DEPTH OF FIELD, SHADING, AND INCREASING TO BEST DEFINITION. 
HOWEVER IT IS NOT POSSIBLE TO BRING A POOR IMAGE TO PERFECTION.  

THE EXCEPTION;  IMAGES BY 3DMAX, A COMPUTER CAD LIKE PROGRAM WAS USE TO DRAW  THE  "WHAT IF"  IMAGES WITHOUT THE INTERFERENCE OF; DRY MUD, FOSSILIZATION, ELECTROSTATIC DUST BUILD UP, NATURAL WEATHERING AND POSSIBLE PROFESSIONAL INTERFERENCE BY A THIRD PARTY.  THE CAD IMAGES ARE BASIC AND SIMPLE AND NOT TO SUGGEST BEING PART OF THE ORIGINAL IMAGE, BUT A "WHAT IF THEY WERE CLEAR" EXAMPLE OF THE FEATURED OBJECT. 

     ARTIFACTS  OF  INDIGENOUS LIFE MAY HAVE SURVIVED A PLANET WIDE PLASMA CATASTROPHIC EVENT, EVIDENCE INDIGENOUS OR OTHER VISITORS MAY HAVE LEFT MACHINES AND MORE BEHIND ON MARS. THE TECHNOLOGY OF AN ADVANCED CIVILIZATION WOULD VERY DISERABLE FOR ANY ONE WHO HAS THE RESOURCES TO FIND AND REVERSE ENGEENER SUCH TECHNOLOGY. IE THE PLANET MAY BE NOW OCCUPIED BY UNKNOWS. 

THIS IS A GUIDE TO WEED THROUGH THE MAZE OF RAW IMAGES POSTED BY NASA-JPL. 
http://mars.jpl.nasa.gov/msl/multimedia/raw/

 IF JUST ONE IMAGE IS OF INTELLIGENT NATURE IT ANSWERS MANY QUESTIONS. THERE ARE HUNDREDS  IMAGES THAT SHOWS OBJECTS NOT NATURAL, SOME MAY BE ON THE EDGE OF ONE'S IMAGINATION, BUT EACH HAS THE BASIC ELEMENTS TO BE REVIEWED AND ARE THE OPTION OF THIS WEBMASTER. NEARLY ALL OF THE FEATURED IMAGES HAVE A DIRECT LINK TO THE URL  DATE AND TIME THE NASA ROVER TOOK THE PICTURE, TO BE REVIEWED BY THE VIEWER. THERE MAY BE 1,000's OF hidden IMAGES YET TO BE DISCOVERED.