Is there a similar show without the fantasy/supernatural elements that you might recommend, if you see what I mean?

I don't need it to be historically accurate (if anything I'd prefer it didn't even pretend to be about 'Romans' or whatever, like GoT doesn't, since then there's an historical truth for it to (likely) miss) but the more GoT went on the more dragony, visiony, giants-y, etc. it seemed to get, and while I enjoyed it I do find it harder to engage (or perhaps rather easier to disengage, take a while to get into, etc.) with that sort of stuff.