Here is a little map based on my quiz about #thedress (in English: http://chetvericov.ru/tests/thedress/quiz.html, in Russian: http://chetvericov.ru/tests/thedress/quiz_rus.html). Each point is a single participant, fill color shows the color of one set of stripes and border color shows the color of the other set of stripes. Location data is approximate, based on participants’ ip adresses. The map is created with Leaflet library (http://rstudio.github.io/leaflet/).
The second map shows the data aggregated by country. The circle size shows the number of participants with the smallest circles corresponding to the countries with one participant. As you can see, when there is more than one person the colors are quite similar. In fact, they correspond nicely to the real dress colors as measured by color picker. The wisdom of the crowd wins again.