RUINS

Ruins are just that: ruins. They're completely and utterly destroyed cities and national monuments that appear as nothing more then rubble and slabs of rock sticking out of the desert, but don't think that these places are completely useless. Most have excellent hiding spots, camping spots, and possibly even a preferable living space (if you don't like staying with actual people, or if you hate the travel time from place to place). Ruins are usually over-run with parasites, mutants, zombies, devils and other creatures that have been turned deranged by the desert heat.

When spotting a ruin, make sure you inspect the entire area and look for signs of occupants or previous owners. If something starts chewing on your leg; run. Ruins that haven't been claimed by things are usually taken by pirates and nomads. I wouldn't make a habit of living out in the open for too long, though. The desert heat may knock you on your ass during the day, but the desert cold at night can cause a lot more damage.