Margita Titlov‡, ivona bžl’kov‡ Place for a Rainbow A planar project which reflects changes of light and the sky. It would function at sites without tower blocks, as e.g. an entrance to the underground, to a square or to a park. A place of rest in the center of Prague at the Old Town Square - the site of the former Town Hall, an empty lawn at present. My project is based on the movements of the sky and its light changes. The object would consist of a twenty meters wide mirror ÒlakeÒ (polished metal), in which the deep sky would reflect, with its colors and movements. It would be the sky on the ground. People walking on this surface would feel like flying, and like escaping gravity. The mirror ÒlakeÒ would be cooled by shallow water canals. This space would bare its specific meaning at night, when the night sky would reflect in it. The second part of the project of the ÒsiteÒ would be placed in the middle of the mirror surface, where a glass pool with a crystal shape (3,5m wide and 3m deep) would be sunk. The surface of the mirror and the upper surface of the crystal would be on one level. The crystal would penetrate underground where it would create a ceiling of a rounded room. When the sun shines, there would be a rainbow created by the reflection of the light on the walls of the room. This light spectrum would be moving with the changes of the position of the sun in the set line - the place for a rainbow. At night the light spectrum would be constant, created by the reflection of street lights at the walls of the water crystal. There would be a clean white space with a blue hole leading into the water surface of the crystal. The rainbow which announces the movement of the sun works here as a living jewel in a room. There would be two entrances into this space. The rest of the area around the ÒlakeÒ would be transformed into a park with a lawn.