When trying to select a region sometimes a major city is selected instead. When a city is selected a magnifier glass icon is displayed. I think the magnifying glass is not really helpful, since it makes the selection of regions more difficult sometimes. (Unintentionally zooming in to a city happens often to me.) Especially with a country that has small regions and many cities (like the netherlands).
I would vote for not to be able to select cities from the map at a certain zoom level, and not to be able to select regions when zoomed in a bit further. So to distinguish the selection of cities versus regions a bit more. The same goes for selected countries versus regions at ‚in between‘ zoom levels (although this is easier to handle).