Ancient structures such as Stonehenge have a clear astronomical link. The stones have sight lines that mark where the Sun rises and sets at the solstices. However, moving 25-ton stones 15 miles seems like a lot of effort to build a calendar. Did it have other uses? Various attributes have been ascribed to these constructs, some of them very unlikely. We’ll visit places such as the Pyramid of the Sun and Chaco Canyon to investigate their astronomical attributes.

Zoom Link: https://uky.zoom.us/j/89169602114