OK. From the "Odd Science/Junk Science" bookmark in my Science folder. (Someone had to do it!)
http://www.enterprisemission.com/LostCitiesofBarsoom.htm
Chance to see what some say is evidence of ruins on Mars.
I don't see it in most of the photos. There are a few that are pretty creepy. There is one that appears to have a 90 degree corner. (Arabia Terra)
There is an area on Mars called: "Hydroates Chaos," and another Hydapsis Chaos." Sounds like Mars' badlands. (I just like the names.)