"Emain's burgh hath vanished Save that its stones remain; The Rome of the western world Is multitudinous Glendaloch." There is no doubt that the ruins of Emania were in a much better state of preservation when Oengus wrote, nearly eleven hundred years ago, than they are in at present, and it is certain that many of its stones have been carried away to build walls and houses. But it is also quite certain that neither in Ireland, Great Britain, or in any northern country, were stone buildings general in ancient times, and we may be sure that when Emania was at the height of its splendour its best and largest buildings were of wood. The area of eleven or twelve acres that was once surrounded by a deep fosse and high embankment, and within which all the buildings of Emania were erected, is not quite circular, nor is its surface level. Considerable inequality of surface evidently existed in it before it was chosen for the site of palace or _dun_. The highest part within the enclosure is a good deal removed from its centre, and it was evidently on it that the citadel stood. There was a dun within a dun, as there generally was in all ancient Irish fortresses of any great extent. The citadel having been on the highest ground within the enclosure, commanded a view of the surrounding country for a considerable distance. Emania, when at its best, with its vast surrounding fosse and high earthen rampart, capped with a strong fence of wood, might, if properly provisioned and manned, defy almost any army that could be brought against it in ancient times when firearms were unknown.