I'm not sure what to make of that either. It isn't a theme of any particular dream. It just occurred to me one day that several dreams unfolded in the same geographic location that I've never experienced outside of my dreams.
Heh, without a doubt it is fun to speculate about! In my analytical experience, every time I try to categorize a dream type or location, I get a new one that bursts out of my silly box, heh, so my lesson-taken-to-heart was to look for patterns and enjoy the variety (even when I recognize similarities) without going so far as to try and make or impose "rules" for the dreams. I swear that making rules of the patterns is like putting *ourselves* in a box...
CC, I love that your dreams are so stimulating you come here to share that excitement with us--I too have had some that make me *so* very happy and fill me with the wish to broadcast so others might be able to share in the wondrousness. My speculation is this: the more you are pleased with and pay attention to your dreams, the more of those kinds you will have.

So dream on!
(And if you want to increase your fun and perhaps honor those visits/visions, try recalling more and more details in them and sharing those with us. Then we can better enjoy them with you; for example, where did you go in your last dream that made you so happy? What did you see or do and how did that resonate with you? Did it add any new feelings or experiences to familiar areas?)