The design for a teahouse in Baiye Park is inspired by the rock garden and the hidden treasure that one sometimes finds in rocks which hide a crystal. The tea house is a hollow volume that manifests itself as one of the stones in the garden with a glass front in the cavity. Ceiling, wall and floor all are made of the same materials and colors so that the contrast of the exterior and the interior is maximum emphasized. The layout is clear and simple, storage, toilet and bar. Roof and facade are made of concrete with a finish of coarse shotcrete.