A quick, three-step tutorial on how to make maps that look vintage in the open source QGIS. [via]
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Most of the major pizza chains are within a 5-mile …
Casinos are everywhere. This interactive map tells you how close the nearest one is in sampled areas of the United States.
A visual history of a growing United States.
I looked at the percentages of people with a given number of kids in the family and the order they were born.
