Two suspended glass bridges connect the East Wing and West Wing, one bridge each for the upper (second and third) floors. The bridges are wide enough for four students to stand next to one another, shoulder to shoulder. The bridges are fully accessible to those with disabilities, as they connect directly to the main corridors of the proper school building without any elevation changes. The flooring is the same blue-and-white checkered vinyl composite tile as the rest of the school. There used to be waist-high metal guard rails here to stand between students and the heat-tempered glass panels that offer a view of the schoolyard below, but it seems that the terrorists saw fit to remove this particular barrier...

...and to make the glass unrealistically brittle. Before, someone would need industrial power tools to break through the mighty panes; now, some action movie shenanigans that shouldn't work in the first place almost seem like enough to crack open one of the transparent panels.