Except for lighting purpose, led high bay has recently also developed into an optical art. The Ars Electronica in Austria is a castle of digital art. A building with LED Lights color blocks controlled through computer appeared in the movie of Love Speaks, now there’s something like this in real life. Rubik's Cube was created in 1974. It was a teaching tool designed by an architecture professor Bubik Erno in Hungary. Now the cube has become a world famous intellective game which has involved into many different versions.