WHERE ARE THE LANDERS?

This fine map shows the location and status of all Mars landers, successful and unsuccessful.

Some observations:
1) 5 of the 11 landers crashed on arrival. Recommend more work on landing technology.

2) All civilizations are studiously ignoring the three enormous alien arcologies in the middle of the map. (It's so obvious, I'm not even going to bother proving that these line up perfectly with Orion's belt and the Great Pyramids on a particular day in the future when something Very Important will happen.)

3) It would be really cool to drive Spirit or Opportunity up to one of these other landers and take its picture...