[Ráfaga] Nº250: fortune, astronauts, chocolates, calendar, roads

[Jorge Sanz]

* Selling virtual countries on an interactive map to make you rich
  http://milliondollarmap.com

* All the astronauts birth places via @astronomyblog, thanks @realivansanchez
  https://cosmos-book.github.io/human-spaceflight/map

* London metro map made of chocolates, via @Edgemaster / @Londonist,
thanks @realivansanchez
  http://londonist.com/2015/12/video-a-giant-tube-map-made-out-of-quality-street

* Spanish NMA (IGN/CNIG) 2016 calendar with old maps, thanks @realivansanchez
  http://www.ign.es/resources/calendario/calendario_2016.pdf

* The problem of straight roads at the great American flatlands,
thanks @realivansanchez
  http://www.travelandleisure.com/articles/gerco-de-ruijter-grid-corrections-highways-driving-wichita?

Ivan & Raf