I definitely have a sense of what you've described. I grew up in a large house and was creeped out by the expanse of the house and yard. Since I left my childhood home I have chosen to live in small homes or apartments.
With regard to uncovered windows, like the way you've described the student center (they all look pretty much alike)...yeah...there's a sense of looking out and not being able to see anything because it's dark, but anyone can look in and see because it's light.
I think your feeling of wanting to avoid the types of places you've mentioned is not unusual, especially when alone. I'm betting that the feeling comes from very young childhood. I think it's about feeling too vulnerable.
btw, I believe the definition of agoraphobia is "fear of wide open spaces." I'm not suggesting that you have that disorder, at all. It's just an interesting definition.
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