What is the Meaning of Ohio’s Mysterious Serpent Mound? | Secrets of the Underground

Secrets of the Underground | Tuesdays at 10/9c
The Great Serpent Mound is a 1,348-foot-long prehistoric effigy mound in Ohio. Scientists are unsure what its purpose was.
Full Episodes Streaming FREE on Science Channel GO: https://www.sciencechannelgo.com/secrets-of-the-underground/

Subscribe to Science Channel:
http://bit.ly/SubscribeScience

Join Us on Facebook:
http://facebook.com/sciencechannel

Follow Us on Twitter:

Check out SCI2 for infinitely awesome science videos. Every day.
http://bit.ly/SCI2YT

Related posts

Leave a Comment