Mysterious stone

I found this stone a couple of years ago on the street next to an abandoned house. There were many such stones there. But I was able to bring only 2 of these stones to our garden. These are heavy stones. I wanted to show you the stone in its entirety. But it was hard to lift it with one hand. I was afraid that the stone would fall.

I think the hole in these stones was made for some purpose. But I don't know what these goals are. We use these stones to decorate our rural life. It looks like a stone vase.

While gardening, we moved these stones several times. Now these stones are on the Alpine Hill.

And this is a video of our nature
Video: "Spring lilac"
https://rumble.com/v53pho7-spring-lilac.html