Archaeologists Unearthed an Ice Age Settlement That May Rewrite North American History

Beginning with the arrival of the first people in the Americas around 15,000 BC, the United States has a long and rich history. So much so that to this day, we continue to discover the most astounding things in this country—things that are so incredible some of them could rewrite history.

From mysterious vortexes to bizarre animal fossils, here are 20 shocking things recently discovered in the United States!

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