Very cool! I also love looking over maps, old paper and
new digital, very interesting how much the world was
populated everywhere so long ago!

Those stone circle cattle kraals are mostly I would
say, clocks/calendars. Sun and moon, seasons and
cycles kept track of for ages.

We moved the clock from the ground to the wall.
I've also seen in south america, might of been
Bolivia, where the same stone circles were used
to harvest grains, seeds separation, wheat from chaff.