Great Wonder of the Ancient World! The Great Serpent Mound - Hillsboro, Ohio
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The Great Serpent Mound is a 1,348-foot long, prehistoric effigy mound on a plateau of a meteor crater in Adams County, Ohio. It..
The Great Serpent Mound is a 1,348-foot long, prehistoric effigy mound on a plateau of a meteor crater in Adams County, Ohio. It..
We finally start the long trek back home from Grand Canyon but at least it should be a pretty easy flight today. We are treated to..
Space probes have witnessed a big impact crater being formed on Mars - the largest in the Solar System ever caught in the act of..