One of the favorite areas for orbiting cameras to photograph, so it must have something going for it. Of course, it isn't exactly hard to find, either. On the posted images, you see a lot of messy topography. When you enhance them, it becomes more apparent why this area is always on the "A" list- in the ongoing search for Potentially Useful Ruins, Sinus Meridiani has lots of them. 

We will start with a small section from R0501592,
		On the left, a section full of that messy topography I mentioned. Below, a tiny part of it at full resolution which, when seen not quite this close-in, looks a bit like a Samurai mask. Note the structural "blockies"- I never have liked that label, but we may as well use the familiar term. Fair is fair. Click on him to see a larger part of the section at full resolution.