- Earth Divided in Ten Zones of Equal Population, Frank Jacobs, bigthink.com, 10th April 2017.
- Colorado towns named after elements, K99 (Colorado’s New Country radio station), 21st November 2016.
- Driving time from Denver, Colorado [3507 x 2480], reddit.com, 14th November 2016.
-  The world split into 10 slices of equal population, via http://jamesgeo.com
-  Driving times from
#Denver, Colorado. #dataviz
-  Identify the country from its population density- This is a fun