I find the corridors in my apartment block kinda spooky. They all look identical and have absolutely no defining characteristics. I always double check before sticking the key in the door to check it's my place, because it's all so much the same.
Each corridor has a big window down the end though, that kind of looks out into nothing when you are far away, because of all the pollution in the air. It's pretty weird. Especially really early in the morning when the lights in the corridor aren't switched on but it's still kinda dark.