The Unity interface, like many other working environments, has a customizable layout. Consisting of several dockable spaces, you can pick which parts of the interface appear where. Let's take a look at a typical Unity layout:
This layout can be achieved by going to Window | Layouts | 2 by 3 in Unity.
As the previous image demonstrates (Mac version shown), there are five different panels or views you'll be dealing with, which are as follows:
Scene —where the game is constructed.
Game —the preview window, active only in play mode.
Hierarchy —a list of GameObjects in the scene.
Project —a list of your project's assets; acts ...