From the square downwards, there is a drop of about thirty meters leading to a ring road about fifty meters wide. This ring road encircles the World Tree with two layers from top to bottom; the lower ring road connects to the upper one, while the upper ring road connects to the hollow internal hall of the World Tree on its tree wall side.
Further down from the two ring roads, there lies a spacious area composed of countless roots of Valhalla rooted in the ground. This uneven area has a diameter of about two to three thousand meters, creating many flat spaces connected by avenue-like roots, forming the entire Lower City District of Valhalla.
However, there are no definitive buildings in the Lower City District, yet the descendant of a certain Rune Dwarf whimsically thought of building an artificial fortress in this area.
