They both deal with location, they are all separated by something (such as land charicteristics - region and borders - place) and they can be man made or natural.
even though they are not that similar they are connected in a way that place is in a region
what the lower atmosphere is like at any given place and time
The states of a region are similar due to climate change and geography.
Both the Flemish region and the Walloon region are part of Belgium and have their own distinct cultural identities. Both regions have their own regional governments and autonomy in certain policy areas, such as education and cultural affairs. Additionally, they both have vibrant cultural scenes and historical significance.
a region is place
functional region
It is a region.
....
Australia and New Zealand
a place is in a region, regions are large areas with many places inside.
I don't believe there is a special name for that, so you can just use a term similar to what you wrote in the question, for example, "a region with no magnetic field".
Japan itself!