The concrete walls on the facade of the observatory are the perfect canvas for sunlight. The roofs overhang irregularly outward. Through the angular misalignment between the roof and the wall, a sharp shadow forms on the facade. The roofs are horizontally separated from each other forming gaps, and then the gaps are vertically extended by taking advantage of the space height differences. The light bands outlined by the gaps are projected onto the walls and floors, and their shapes change as time passes. (Text from Architect)