Bizarre discovery scientists can't explain

There are some bizarre thing happening around the world now that you never know about. some can be explained, even though it might have taken a long time (sometimes even centuries) to explain. While others are so mysterious that even the best historians, archaeologists, and scientists in the world haven't been able to figure them out.
But whether or not we know the whos, whys, and hows behind these findings, we should know about them, so, here are discoveries around the world scientists haven't been able to explain.