This is similar to the ECVP Waves illusion, On checking this optical illusion carefully we can see that this image shows a movement after sometime,
![Roof Moving Illusion](http://img176.imageshack.us/img176/3571/movingroofopticalillusihv9.jpg)
This is similar to the ECVP Waves illusion, On checking this optical illusion carefully we can see that this image shows a movement after sometime,