PTSD, for me, has a theme of the unknown. So I seek places that are familiar, that are engaging, and yet distancing. For me, PTSD manifests itself in an alienating, distancing, self-loathing, craving for connection with a world that has 'moved on without me'. I am constantly drowning in a feeling of over-stimulation from the things around me, so I have to distance myself. But if I distance myself too much I get lonely and feel like the world is going to move on even more without me.
I seek a place that is both of those things. Familiar, and different, connecting and distancing.
Starbucks is where I go sometimes. A different one every time. I also have paranoia that I am being followed. So I can not go to the same place twice in a set period of time.
Sometimes I have to be alone, so alone that I have to feel the distance between me and the rest of the world. I have to be miles and miles away from civilization. Before social events, and busy days I need time to flush everything, work out all the demons.
I don't know if this is like anyone else, but the location doesn't really matter. I know it does to those who love us, but the location is trivial. It is the feeling of the location for me. The connection or lack thereof, is the part that helps me recharge.