The width to height of the Parthenon, and the height of the monument to the height of the columns, are roughly the golden ratio.
Is the golden ratio part of the design of the Taj Mahal?
The height of the building to the height of the base of the dome — (a+b)/a along the red line in the picture — is in the golden ratio.
The Mona Lisa, painted by the world famous artist Leonardo Da Vinci, is believed to be composed using the Golden Ratio to create its harmonious and aesthetically pleasing structure.
Nature's Connection
The Fibonacci spiral is a remarkable approximation of many spirals found in nature, most famously seen in the beautiful chambers of a Nautilus shell.