I had to think about this one, but without a doubt it would have to be the skinwalker ranch story. It is one of the only things that not even science can explain, and it's the weirdest story ever. This family moved into a ranch and the first day they did, the saw a giant wolf. The wolf walked up to them calmly and did nothing, in fact the dad even reached out and pet the wolf. When asked why, he said he was drawn to it. The wolf then calmly walked towards one of the cattle and sunk its teeth around its head all of a sudden. That was the first day they moved in. A while later, cows started showing up being skinned alive and having perfectly precise cuts. These cuts were so precise it looked like a doctor had done it with a professional knife, and that meant it wasn't any wolves or anything from the woods by the ranch. Talking about that, the family normally went by the woods since it was part of the ranch they owned. There have been many instances of them seeing weird creatures that had no hair, no clothes, and were just there for split seconds in the forest. Once the family was on the porch and they saw a blue orb in the sky as well, but you get it. Weird shit happens in that ranch, and its also a 'coincidence' that the same ranch lies on old native grounds. The ranch was bought by a billionaire to have a team of scientists test it in the end. If you believe it or not, I personally think that this is one of the scariest true stories I know.