"The hobbits were pleased to leave the cheerless lands and the perilous road behind them; but this new country seemed threatening and unfriendly. As they went forward the hills about them steadily rose. Here and there upon the heights and ridges they caught glimpses of ancient walls of stone, and the ruins of towers: they had an ominous look. Frodo, who was not walking had time to gaze ahead and think."
J.R.R Tolkien from The Fellowship of the Ring