Where on the map is this literal, physical, high mountain that one could see every kingdom and nation from? If there is no such mountain, you must search for a different way to interpret this passage.
But I thought it’s impossible to see that far, because light can’t travel so far and because “law of perspective”.
I’ll say it again: flat cultists throw together anything they find to “support” their beliefs without checking the logical consistency of all their assertions with one another.