We used the classic game "Tetris" as the basic element to create a dream world that belongs to children, which not only includes the idea of having fun but also introduces programs of "teaching" and "family activities" in order to achieve a multi-functional effect. The whole building is a parent-child hotel, a teaching space and a recreation paradise, so that children can learn together with their families in the joyous world, which not only increases children's learning desires but helps to strengthen the intimacy between parents and children.