The renewal of the city is derived from the process of growth and regeneration aspect. The deep meaning of the changing includes the pain during its transforming process. Between giving up the familiar existence and waiting for the unclear future, we need lots of courage and effort to cross and change. Therefore, we proposed ‘Crossing‧Transforming“ as the subject of the work. “ Crossing‧Transforming ” uses computer animation to demonstrate Chang sheng-huey's art work on the wall of the building. If you pay attentaion to this presentation, you might perceive somthing. The details in the picture are worth your admiring and discovering. See what message you can get from the picture. In addition, we use the technique of optical illusion to hide the deformed images inside. See if you can figure out the three icons hidden in the picture-the running person, the child and the car ……!?Eventually, you will find that it's totally different from some angle. The pottery brick is made by a famous pottery artist Wu Shui-yi. On the brick, the trace of rationality and sensitivity symbolizes people’s emotions to the mother land in the past and the present ; meanwhile , it also implies the correct site in the optical and illusiory game .