As one ascends the structure, the bottom is soon shrouded in darkness as well. The length and width of the interior is about the size of a school gym, with no internal walls, however the ceiling is not visible from the base.
Resembling a pit or vertical tunnel leading to outer space or another dimension, it doesn't correspond to the building's outer dimensions, reaching up kilometers or tens of kilometers, on a scale which is usually only found in mountain climbing. The interior of the Windowless Building, as viewed on December 11th when Kamijou Touma's group entered it through the hole created from the damage to the rocket boosters, is comprised of a fully enclosed environment with a strange spatial structure which surpasses Euclidean geometry. Various floating displays are often present in the room. The room's most notable feature is the single glass cylinder that usually houses Aleister Crowley, connected to his life support system, housing several wires and cables, and filled with red fluid which tints the room with its color. The room is described as chilly, despite the lack of ventilation. The chamber's walls and ceilings are covered with tubes and pipes. įor most of the series, the only area inside the building which was directly shown was the quadrangular chamber where Aleister Crowley resides. There is a large space below the Windowless Building with ramps leading in and a set of rocket engines, indicating the building's nature as a spaceship and the plan for it to leave the planet. Unlike the anime and manga versions which have largely straight outer edges, its outer edges curve inwards towards the top. In the light novels, the building is also a white colored structure, over 100m tall and several stories higher than the surrounding buildings. The Windowless Building as it appears in the novels During the night, purplish light covers the building giving it an eerie glow compared to the surrounding buildings in the area. In the anime and manga adaptations, the building is a white colored structure, several stories in height with spires and aerials jutting out of the top. As its name suggests, the building contains no windows, corridors, stairs, air ducts and no sign of a visible entryway. The Windowless Building is located around the middle of the city, at the center of School District 7.
The Windowless Building during the night in the anime.