Ancient Civilizations of North America Episode 7, Medicine Wheels of the Great Plains Episode 7, Medicine Wheels of the Great Plains.

Streaming video - 2018

Medicine wheels - wagon-wheel type arrangements of stones on the ground - vary in their number of spokes and size; are difficult to date; and although some are precisely aligned to the solstices, the majority have no known astronomical significance. Survey what we do know about their function and meaning, which almost certainly changed over time, just like the human populations who built them.