The world simply takes the form of a building, although it is a particularly tall one, equipped with loads of depth because of its compact nature. The atmosphere is like a narrow apartment building in the sky, and it's certainly different.

It has 14 customizable floors and a piston elevator that pushes up and down to take you to any floor you want. There's even a little "ding" sound when you hit the ground. The slim and delicate building is well worth a look.