A model (a presumed overall plan, or original intent) of the Sanctuary according to the Meg-X Hypothesis. The values are the suggested sizes of the gaps in the assumed perimetric unit. The outer circle measures 756 units (42 x 18) and there are 36 gaps of 18 units, three of 12, two of 21 and one of 30. Note that the arc shown at north is 72 units (4 x 18), and that the three arcs of 12 units derive from 36 units (2 x 18). From ‘Stone Circle Design and Measurement’, by G.J. Bath.
Image credit: G.J. Bath