The Building is a big complex of The Rooms stacked together. There are short hallways connecting The Rooms together. Each Room contained within The Building is slightly different. Some have different dimensions, others have different creatures and realities. Only Primordial beings such as The Primordial and THE CREATOR have went into other Rooms or went outside The Building. Also, no creatures survive on the outside of The Building. If you get outside The Building, you will see what is shown in the picture. That tiny dot is the only way out of Never. The outside of The Building isn't that widely known, but The Primordial said that the color of it was white, and that the material was some Primordium Delta/Primordium Alpha/TREEYUM/Glitchonicite mixture.