I recently came by the many questions of scaling creatures and the square-cube law in real world physics right here, and it piqued my interest a bit to make this question. Think of it as an exercise but I truly would like to know :)
Here are the details:
The world behaves by real world physics, it just happens that by some reason magic exists, and there's a race of Giants towering in around six thousand meters.
These Giants' bodies function exactly like our normal bodies, under our own rules of physics and biology following them perfectly. It just happens that thanks to Magic, these bodies are actually possible, but besides this, to reiterate, their bodies are completely natural and follow the rules of physics and biology without fail.
Now, under these circumstances, one of these Giants decided to pay us a visit, and in doing so, he walks by a forest, comes over a mountain, and walks through a city.
What would be the natural effects his mere presence and walking would have on nature/environment in these three cases?
Thought this would be a fun question to ask, an interesting one too, and a good one for my first question here. Have fun :)