12 ancient paintings containing surprising evidence of aliens

Sci-fi has been around since just after the dawn of humankind—or, if you believe in ancient astronauts, sci-fi has been around since slightly before the dawn of man. We have to admit, it's a lot harder to disbelieve the notion that something otherworldly once walked among us after looking at these ancient paintings of just that.

Here are a dozen spectacularly cool drawings that featured elements of sci-fi long before the concept of "little green men."

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