Credit for all photos and Newark Earthworks video folder: Ohio History Connection

Credit/source Octagon Earthworks Only video folder: TourismOhio

Photo captions:

Aerial-Octagon-No-Date: This aerial view shows the entirety of the Octagon Earthworks and Moundbuilders Country Club golf course in Newark.

Newark-Earthworks-Artists-Conception: This artist's conception shows what the Newark Earthworks sites looked like 2,000 years ago. The Octagon Earthworks site is visible at center; the Great Circle Earthworks site is visible at top right.

Octagon-Closeup-No-Date: The Octagon Earthworks is at 125 N. 33rd St. in Newark.

Octagon-Morning-No-Date: The Octagon Earthworks is at 125 N. 33rd St. in Newark.

Rendering-Octagon-Moonrise: This rendering illustrates how the Octagon Earthworks in Newark tracks a complicated 18.6-year lunar cycle.