According to myth, there are old spells woven into the Wall, to strengthen it and keep creatures of a magical nature such as the Others from passing it. Led by Othell Yarwyck, the First Builder, the builders of the Watch monitor and repair the Wall.
The top is wider in man places than the kingsroad, and crushed stone is spread on walkways to aid with footing.
The top is wide enough for a dozen mounted knights to ride abreast and it is thicker at the base. It appears grey or blue depending on the weather and time of day. It is made of solid ice, stone, and earth, and can be seen for miles round. The Wall stretches for three hundred miles and is approximately seven hundred feet tall. The Wall by Sabin Boykinov © Fantasy Flight Games
