A golden spiral showing the Fibonacci sequence of numbers. This visual can be seen throughout nature, such as in flowers, hurricanes, and even the human ear!
This picture shows the golden ratio superimposed over a hurricane system.
This article provides 15 examples of the Golden Ratio in Nature, including flowers, pinecones, shells, and even galaxies.
The Parthenon in Greece shows a golden rectangle, whether designed that way or not. Many other buildings use the golden ratio.
The Mandelbrot set of numbers can be used to create images. Wikipedia says it is one of the best-known examples of mathematical visualization.