#614: barometric, metro, gettysburg, culture
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Global barometric seasonal variation and its influence on migraines
https://www.securevideo.com/blog/2016/03/18/global-barometric-variation-annual-maps-and-monthly-raw-data -
Evolution of subway construction in China between 1990 and 2020, present in 20 cities nowadays
http://pdovak.com/chinese-metro-evolution -
Decisive moments of the Gettysburg battle, an interactive map for a detailed review
http://www.smithsonianmag.com/history/A-Cutting-Edge-Second-Look-at-the-Battle-of-Gettysburg-1-180947921/ -
A map of theaters where you can see shows and performances
http://www.theatermaps.com/
Raf