It's a beautiful world: National Geographic photographers on show

Last-minute entries are still being accepted for the 2013 National Geographic Traveler Photo Contest, - but the closing date is Sunday, June 30, so you'll need to be quick! A look at some of the entries shows just how high the stakes are: here's just a tiny selection. The judges have certainly got their work cut out for them...

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And you can see even more amazing photos from the contest here:

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