Dis, the second level of Barto Hell, is marked by the eponymous City of Steel.
The vast 'City of Dis' is located in the center of a massive circular serrated valley, occupying the vast majority of the entire second level. Its city walls are incredibly large, the interior space virtually infinite, and the scorching streets resemble a maze. Plane Travelers who come here are likely to walk forever on the road, never reaching anywhere.
The buildings that appear and disappear along the streets are filled with danger and ill-omen. When conducting transactions here, one must be very careful, for a moment's inattention could result in losing one's soul.
The layout of the city also frequently changes. Countless low-level devils work tirelessly within the city, constantly demolishing old buildings and constructing new ones at an astonishing speed, making maps almost useless here.