Stroke density map (20 km grid)
Lightning strikes around the world (2012-2014). https://farm1.staticflickr.com/455/20206874135_fd396ba963_o.jpg
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World
Daylight as a function of the latitude World map
The angle of sun and daylight as the year progresses showing day, night, poles and whole world Hours of sunlight
Read MoreFemale leaders in the world
Most of the World’s nations (colored tan on map) have never had a female leader. Just 10 countries had a
Read MorePopulation proportion over 60 by country
via chartsbin.com
Read MoreThe vikings
Area raided or occupies by the Vikings.
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