The world is full of circles: in honor of #PiDay by @Esri http://www.smithsonianmag.com/travel/world-full-circles-180954529/ … v @SmithsonianMag #socialmedia #mappic.twitter.com/X6DkVCIUCJ
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The world is full of circles: in honor of #PiDay by @Esri http://www.smithsonianmag.com/travel/world-full-circles-180954529/ … v @SmithsonianMag #socialmedia #mappic.twitter.com/X6DkVCIUCJ