This is why time travel hypotheticals kind of need to come with the added rule "also you're immune to disease and you won't be bringing any disease with you" because without the first part, suggesting that you'd like to go back in time further than a couple hundred years is pretty much just saying "yes i want to die horribly" and without the second part you're basically saying "yes id like to commit genocide"

With those rules in mind, there are a hell of a lot of places and times I'd like to visit. None I'd especially like to stay in though.