Monument of Grimnir is a Dwarfs military recruitment building in Total War: Warhammer. Larger Holds have greater shrines dedicated to the Ancestor Gods; Grimnir is the warrior god and patron of Slayers.
Background
Karak Kadrin is the great Hold of Ungrim Ironslayer, the Slayer King. Ever since the days of King Baragor, it has been the location of the greatest Slayer Shrine, a massive monument to Grimnir which thousands of Slayers flock to every year. However, whilst Kadrin is undoubtedly the most important, many Holds have large Slayer populations.