I got the idea for this one after reading American Gods by Neil Gaiman and, ah shoot, some webcomic whose name escapes me. Well, anyways. There's a city full of buildings that have mirrors for windows but no streets. Just buildings and empty chasms where the ground should be. When the moon hits one of the buildings it turns red and you can fall through the reflection during these times. Once you fall through, you pop up in a city full of steel buildings, but only the structures, the steel bar skeletons. They have no walls or windows. Once in a while, you'll see a mirror panel on one of the buildings, which reflects a shadowy figure whenever you look at it if you are someone who fell through the moon's reflection from the empty city. And also, there are pockets in the empty city with the steel skeletons where a god is dreaming. Living things only exists in these pockets, although you can bring them back with you. Nothing living exists in the city with the steel skeletons. That's all I've finished ironing out though.