... Is anything explained at all?

I watched the first season and a part of the second. I feel like they're adding A LOT of things just for dramatic effect and 'cool' scenes and nothing is explained so far. It's tiring for me to watch at this point. Is anything explained at all later? I mean important questions like what is this place, why are they there, what happened there before, what are those monsters, what's up with the trees etc