The project should not only satisfy the function of viewing the river view, but also conform to the sculptural and modernity of the architectural image. We use a single steel column to lift the activity space to a height of more than ten meters. At the same time, in order to emphasize the floating feeling of the volume, mirror stainless steel polyhedron is used to wrap the giant column and stairs. In the construction, from the shape to the material, to the texture, seam, installation, and lighting of each aluminum plate, all these have become challenges to the construction process.