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National Geographic al Twitter: "Your Shot photographer Dinesh Parthasarathy captured this imaged during a roller blading race in Chennai, Tamil Nadu, India https://t.co/yyGzliZcWX https://t.co/RihKFSlH0d" / Twitter
National Geographic Travel - The entry period for the Nature Photographer of the Year contest has ended, but you can still browse some of our editors' favorites here: http://on.natgeo.com/2f6Jiv2 | Facebook
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National Geographic Ladders 3, Roller Coasters: On Level Physical Science (2013 Copyright) by Stephanie Harvey: New Soft cover (2013) | Bookworksonline
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