Years ago, as a teen in my high school library, before even being aware of my "city boy" sensibility, I remember being creeped out by this picture...

I've posted this before (maybe on another blog?) but Palmyra Atoll, a very remote little place in the South Pacific, a satellite photograph of it gave me the willies, too -- the inky dark of the Pacific Ocean, just a few feet from swallowing up this atoll once and for all...

I hyperlinked a kayak ride to that atoll in the above picture. I think they're approaching from the right-hand side, judging from the lay of the land, what little there is of it. Anyway, you can see this unfriendly little atoll, dark and mysterious, rain-soaked. I've put more than a few short stories out on lonely little islands like that.
I'm sure it's tied to an instinctive sociability that is inherent in human beings on some level, but that isolation is just very creepy. Give me something for my eyes to fix on -- mountains, forests, rolling hills. Don't give me featureless plains or thumbprints of fading land in a giant, endless ocean of unimaginable depths and dangers.
I've never felt in danger in the city. But living out in the countryside, I've felt that Gothic kind of dread, the sameness, the emptiness, the lifeless houses, and above all, the wasted space. It didn't help that the years at "The Black House" were filled with weirdness and uncanny things, of course, but still, it creeps me out.