Coral Castle 1930's Film Footage! (https://www.youtube.com/watch?v=_2SmmSD0afg)
How The Easter Island Moai Walked! (https://www.youtube.com/watch?v=yvvES47OdmY)
How The Great Pyramid of Egypt Was Built! (https://www.youtube.com/watch?v=AzxfIc9rZjo)
Michigan Man Moves Massive Blocks In His Backyard Using Simple Contraptions! (https://www.youtube.com/watch?v=pCvx5gSnfW4)
Gravock