[quote=@ShwiggityShwah]
 It didn't hurt that he himself was an avid outdoors man, scientist, lover of science with an animal lover girl friend.
[/quote]

Isn't IRL super industrialized to the point that the air is no longer breathable and you can't see the sky? Assuming we come from the same original world. But that was part of what Ainz marveled about seeing nature again, and that some of the guild floors were meant to emulate nature scenes that had been lost to the world?