As the year winds down, it is again time for National Geographic's annual photo contest. The contest is open to adults from around the world who believe they have a one of a kind photograph and pay the $15 entrance fee. National Geographic is accepting submissions now through November 30.
Photographs which have not been digitally manipulated can be entered in one of three categories: people, places and nature. National Geographic explains that a winner will be chosen in each category, with a grand prize winner selected from among those three. The grand prize winner will receive $10,000 and a trip to National Geographic's Washington, D.C. headquarters.
This year's judges, National Geographic photographers Tim Laman, Amy Toensing and Peter Essick, will have their work cut out for them. National Geographic says it received over 16,000 submissions from 130 countries last year.
View some of the finalists and winning images from 2010 here.
Visit National Geographic's contest website for more information about the contest and to see some of the most recent submissions.
Captions and images by individual photographers.