The Dimensional Research division is an area located in the Research Sector. It was a top-secret research department created by Head of Research Dr. Casper Darling for the study of alternate dimensions such as those accessed from the Slide Projector Object of Power, with access given only to a small number of research personnel hand-selected by Dr. Darling.[1] Entering this area of the sector leads directly to a Firebreak that crosses into the Ashtray Maze , a mysterious, shifting "puzzle" whose design deviates from the Brutalist architecture of the rest of the Oldest House.