Comparing randomly can reveal many things. I went to Bulgaria and noticed some similarities with the surroundings at my home. These cliffs forming the coastline of the Black Sea ought to be there for a reason.
Kavarna in Bulgaria is within a polygon which can be compared with the one at Hekla Volcano in Iceland! Here is how it works:
The back flow line from Hekla (red colour), and the main central line extending from the lower mantle division line, form the sides of the polygon at the coast of the Black Sea.