For some reason I think Thor felt that the vast nothingness would make a good spot. But he wasn't able to build it actually on the land so it's hovering a meter or so above the ground. It's all very bizarre.
For the record, I don't try to take over every place I go. There is far more at work than that. And you certainly don't seem to like me overmuch, and this version of you fancies himself to be very clever.