This building goes on forever. It does not matter which way you go either. I once spent the whole be going down. After a few days I could have it wasn't even darker and colder. I'd guess that meant I was under ground. Don't ask how I knew. I think its cuz the lights were different. The lights on the ground floors are just like sun light and not that fake stuff like you'll see for sale at a hardware store. No this is like a sun has been shoved in a ball and placed in every hall and room. They move too, like they're growing. I guess the young ones are those underground and that's why they're not as bright. But after a day or two they move