Back to the original topic: the pic's shown do look like natural rock formations to me too. But then who's to say that if Noah's Ark really existed that there would even be remains of it to find today. I would think it would have made great kindling to dry some off their stuff or cook with. It would have also made great lumber for shelters and homes. Just more thoughts for the "what if" game.
I suppose it's possible that some of Noah's Ark survived, but it's unlikely.