Artist Gustavo Sousa used the Olympic rings as data indicators for statistics like obesity, homicides, and number of billionaires. Each ring represents a continent, and the larger the ring, the larger the value. Simple and an interesting metaphor shift.
Olympic rings as data symbols
19 Maps That Will Blow Your Mind and Change the Way You See the World. Top All-time. You Won’t Believe Your Eyes. Watch.
Many lists of maps promise to change the way you see the world, but this one actually does.