I have read about protagonists who get smashed through buildings, going through earth's atmosphere from space onto earth's surface *unharmed* , get launched across the sky and smashed into concrete. Generally coming out relatively injury free with only some scratches.

Obviously, it's impossible for a human to survive reentry from space. He would be incinerated into a rather small cloud of ash. However, is it possible for a human to get hit hard enough that his body breaks concrete and still come out nearly unscathed?

It seems feasible enough that we could have some kind of super high density bones and really really hard skin, right?