In the panorama "As Far as Opportunity's Eye Can See," you can see the imprints in the soil left by Opportunity's airbags. You can also see some other things in the sand which are a bit more mysterious.
I have no idea what to make of the above picture. You can tell that it is situated upright because of the shadows cast from the object. I almost get the impression of a bunny.
This one is equally strange, but maybe these are just debris from some part of the landing apparatus.
There are several of these white objects scattered around. These could just be pieces of the airbags.
If you want to see them for yourself, just look to the bottom, right side of the panorama.
The entry for the panorama is toward the bottom of the page at "02-Feb-2004."
http://marsrover.nasa.gov/gallery/panoramas/opportunity/2004.html
This is a pretty popular anomaly that has been listed by many others across the web. I felt that my site would not be complete if I did not list it at least once.
The Mars Exploration Rover Opportunity took the following picture of Cape St. Vincent from Victoria Crater in 2007. I have circled the spot where the statue can be found.
If you look behind the spot where the statue is circled in red, you can see what appears to be a path that ascends the side of the cliff.
Besides the "Egyptian" statue in Cape St. Vincent, you can also see another face not too far away:
This appears to be just a carved face without a body, but you can see the nose, cheek bone, forehead, etc. The location can be found here:
Sources:
http://photojournal.jpl.nasa.gov/catalog/PIA10210
http://marsrover.nasa.gov/gallery/press/opportunity/20071226a.html
