The Long Gallery

Two rows of square pillars carry the ceiling down the length of the hall, and the light gives out between them before it finds the far wall. Bench-cut alcoves recur along the walls at an even spacing, as though whoever made this expected a great many people to need somewhere to sit at once. None of them have been sat in for a very long time. Every wall has a way out of it.

Depth 6.

You are reading the dungeon, not walking it. Rooms are only created by people, and only from inside the maze.