The first step is to examine what the Wall is and what it means in the show. The Wall is a huge structure made of ice as well as stone that is 700 feet tall and 300 miles long. It was built over 8000 years ago, during the Age of Heroes, to safeguard The Seven Kingdoms from the dangers beyond, including the wildlings and White Walkers. The Wall is protected by Night’s Watch, an ancient group of men who make a vow of a holy sacrament to defend the Wall and the realms of the men. They are the Night’s Watch. It is made up of outcasts, criminals, and volunteers from across the Seven Kingdoms.