Interesting Art

I think interesting art is the trick art.
These are popular.
there are many kinds of trick art.
Some people view this art changes.
Moreover, it appears to be running.
This is due to optical illusion.
These are some art that looks different from a different direction.
This art and films are also used.
These are also used in other amusement parks.
Please see this art.


http://www.youtube.com/watch?v=fF90blLOzgo