There are quite a few huge megaliths in the world, on which they seem to have trained, tested technology or something else. In general, they are lying around idle, but in the past, such megaliths were clearly engaged in and hardly primitive instruments.
One of these megaliths is located in Peru, called "Yurak-Rumi". There are a lot of interesting things in the stone, from difficult fragments to work almost inexplicable.
For starters, the most important thing is the cut part. It can be seen that the upper part of the megalith simply does not exist, and now it is a polished platform from above.
It was like something was cutting off the surface of the upper part while grinding the stone itself. Of course, we can say that this is the work of time and nature, but nature could only create a flat surface, similar to a polished one, but cutting off pieces of stones is unlikely.
In addition, if we talk about the polished surface, then there are the same and other fragments. It is not known what the purpose of these fragments is, in general, like the entire megalith, but they did it all according to calculations and competently processed it.
By the way, on the other side of the megalith, there is also something very similar to the cut off part, or rather, the whole side, 6 meters long and 6-7 meters high, how it was done, and most importantly why, it is difficult to answer.
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On the same megalith there are inexplicable protrusions, cut lines, "stairs" that obviously do not allow climbing anywhere, and this was done, apparently, just like that.
On the next side of the megalith there are no less strange details. These are the same chaotic ledges in the form of stairs, the purpose of which is difficult to explain.
But although they are strange, it is noticeable that they made "stairs" at right angles and processed, grinding the surface. And without precise calculations, I think it is not easy to do this, and even more so, with rough work.
In general, in Peru, there are quite a few places where something was tested, another of the most famous is Kenko Grande, although there are not only traces of processing of a sufficiently high level, but also traces of melting, which is even more difficult to explain.
It is worth saying that all these fragments in stones, like "stairs" that do not lead anywhere, exist all over the world. Thus, megaliths were processed all over the world, but for what, it is difficult to answer.
In this case, the polished surface is clearly visible, and in many places. The stone itself lies without any useful use, so I doubt that the ancient people manually polished almost the entire megalith, and then they threw it, this is at least stupid.