Strange Things On Mars Nasa Photos

The recent Mars expedition has turned up some very interesting photos of the red planet. Some of the photos appear to show some sort of stuctures. In one there is a extremely long "tunnel" which looks too perfect to be a fluke. Another shows another "face" sculpture. There are also "wall" like features as well as large domes which are perfectly shaped....many of them. Nasa recently announced that they have found ice crystals on Mars....which means water, and where there is water, there is possible life. These photos are fascinating to say the least. I am not a geologist, but there are so many of these perfect structures that it is hard to believe that they are natural. Could there have once been a civilization on Mars? No one knows yet, but it is something to study for sure. If you would like to view the photos from Nasa, click here http://marsrovers.jpl.nasa.gov/gallery/all/opportunity.html
http://palermoproject.com/lowell2004/grandcentral.htm