File:NineteenCastlesOnTheWall.jpg

Summary
A screencap from the "Complete Guide to Westeros" on the Season 1 Blu Ray boxset. Copyright HBO. Used with the permission of HBO on the understanding that it can be removed at any time. The image shows the nineteen castles of the Night's Watch on the Wall, of which only three are currently manned: Castle Black, The Shadow Tower, and Eastwatch-by-the-Sea.