dave That looks like Avebury to me!
Well, in @Beachie ’s defense, she just said “Stone Henge” and not “Stonehenge.” 😉
While Stonehenge on Salisbury Plain is an astrological calendar, the smaller Avebury Henge and Stone Circles is a clock.
Stonehenge only needs to adjusted every 4 years on Leap Year Day. 😃
