Penrose tiling, a mathematical pattern with five-fold symmetry, has been used in the atrium floor of the new Molecular and Chemical Sciences Building at the University of Western Australia in Perth. This tiling, developed by architect Gus Ferguson, uses two types of locally manufactured concrete tiles in the form of fat and thin rhombuses to create a five-fold symmetric pattern. The design, inspired by Professor David Kepert and Frank Lincoln, results in a complex, non-repeating pattern that visually stimulates the viewer. The pattern, while composed of only two simple shapes, presents a rich field of perceptual and cognitive possibilities. When viewed, the pattern invites the viewer to discern shapes such as five-pointed stars and symmetrical polyhedra, and to engage in spatial reasoning. The pattern's complexity and non-repeating nature challenge the viewer's perception, leading to a sense of wonder and fascination. The design avoids shading or coloring to prevent visual confusion, but visitors can still engage with the pattern by playing spatial games. The use of Penrose tiling in the atrium reflects the intersection of art and mathematics, showcasing how geometric patterns can create a visually compelling and intellectually stimulating environment. The pattern's appeal transcends its mathematical properties, engaging the viewer's perception and cognition in a unique way. Martin Kemp, a professor of the history of art at the University of Oxford, discusses the historical and artistic significance of such patterns.Penrose tiling, a mathematical pattern with five-fold symmetry, has been used in the atrium floor of the new Molecular and Chemical Sciences Building at the University of Western Australia in Perth. This tiling, developed by architect Gus Ferguson, uses two types of locally manufactured concrete tiles in the form of fat and thin rhombuses to create a five-fold symmetric pattern. The design, inspired by Professor David Kepert and Frank Lincoln, results in a complex, non-repeating pattern that visually stimulates the viewer. The pattern, while composed of only two simple shapes, presents a rich field of perceptual and cognitive possibilities. When viewed, the pattern invites the viewer to discern shapes such as five-pointed stars and symmetrical polyhedra, and to engage in spatial reasoning. The pattern's complexity and non-repeating nature challenge the viewer's perception, leading to a sense of wonder and fascination. The design avoids shading or coloring to prevent visual confusion, but visitors can still engage with the pattern by playing spatial games. The use of Penrose tiling in the atrium reflects the intersection of art and mathematics, showcasing how geometric patterns can create a visually compelling and intellectually stimulating environment. The pattern's appeal transcends its mathematical properties, engaging the viewer's perception and cognition in a unique way. Martin Kemp, a professor of the history of art at the University of Oxford, discusses the historical and artistic significance of such patterns.