Here is a collection of interesting photos of anomalous objects and structures on Mars.
And here is a pic taken by one of the rovers again on the surface, some strange artifact laying in the sand. kinda looks like a statue:
And the structure in this satellite photo is very interesting:
This satellite photo looks like more lakes:
And here is a satellite photo with two strange structures I have marked next to eachother.. The right one kinda looks like a dam to me, with a lake above it, and water flowing down below it heh. And the left "building" is placed by the shores of the "lake":
And this strange stuff, kinda watery/jelly alike with something floating around:
And is this lakes with vegetation growing around them?
Or the forrest?: