I am not able to exit the Perspective tool in Adobe Illustrator

I was working on some graphic design work for coin master freebies but then I accidentally selected the perspective tool. My screen now shows a 3 dimensional cube with three different colors. And I am not sure how to remove it from the screen now. Although when I export the images to PNG, I can see the result like this:

But on the source file, it still shows the cubic marks. Can anyone help me on how to remove it from the screen so I can go back to the normal Illustrator screen again? Many thanks!