Gigapans are gigantic composite images stitched together from multiple camera scans from the Mars rover. These images are made specifically for panning and zooming to see surface details and can be full-screened with a button on the right side. Many show remains of ancient buildings and structures and mechanical junk and debris, this one is unusually rich in such.
http://www.gigapan.com/gigapans/219843
A few snapshots of items in the gigapan with color levels autoadjusted and global unsharp-mask filter:
The planet Mars is basically an archaeological site.