I think the coolest of these is the Apollo 14 image with the footprint trail. Sure, after 30 years we'd expect the landers to still be there, but now we know that the footprints and other scuff marks are still there too. Neat.
I read somewhere that, if humanity died out, after a few million years, all evidence that we existed on earth would be gone, expect the junk we left on the moon.
