Series of crescents around a central circle framed by an outer heptagon with a triad of 7 circles at each point. approx: 300 feet diameter.

Series of crescents around a central circle framed by an outer heptagon with a triad of 7 circles at each point. approx: 300 feet diameter.

Series of crescents around a central circle framed by an outer heptagon with a triad of 7 circles at each point. approx: 300 feet diameter.