Last year there were more than 7,000 entries from over 150 countries, and both professional photographers and amateur photo enthusiasts can participate.
There are three categories: people, places and nature.
Applicants are asked to submit images that accurately capture the moment in time.
If you think you have what it takes, you can enter here. Entries are being accepted through October 31.
The Grand Prize Winner will receive $10,000 and a trip to National Geographic headquarters in Washington, D.C., to participate in the annual National Geographic Photography Seminar in January 2015: A behind-the-scenes experience like none other.
Have a look at some of the best entries below
National Geographic 2014 Photo Contest
Beautiful photos: National Geographic Photo Contest 2014
I'd gone to Big Sur to watch the gray whale migration from the cliffs, but it was too foggy to even see the water. I decided to hike up the Baronda Trail to see if I could get above the fog. This view was my reward. Miles of lupine and blue skies. Outstanding!
A stunning sunset painted the sky over the Jokulsarlon Glacer Lagoon in South Iceland. It was a typical cloudy day in the Icelandic summer. The day was not hoping for a nice sunset, but I still decided to go on the spot, hoping to finally see the sun once the same had left behind the clouds. When the sun went down, in fact the sky burned out in an incredible vanilla tone. The scene was so peaceful and placid, so I decided to capture it with a long exposure, to bring out the amazing sense of oniric peace that this amazing sunset created. It has been like living in a dream.
Under the well-known and old pine-trees of Degirmendere, The 21st International Degirmendere Zühtü Müridoğlu Wooden Sculpture Symposium has been held. Jean-Paul Falcioni the fatherly sculpture is performing his art like dancing with lights filtered by plane leaves. Jean-Paul Falcioni is transforming into a blooming plane-tree in the heart of Degirmendere.
Photo Location: Kocaeli Golcuk Degirmendere
Misty Gage, National Geographic 2014 Photo Contest
Capturing this gentle giant's inquisitive nature was rather easy as he swam right up to us and just stared for several long seconds. I love all the bubbles and his cute little face.
Photo Location: Point Defiance Zoo, Tacoma, WA, United States
Nothing is more intense at Burning Man than the Thunderdome run by the Death Guild. Every night battles rage on inside this dome as combatants use foam bats to assault each other for 3-5 minutes while the crowd, often covering the whole dome, cheers on.
Beautiful photos: National Geographic Photo Contest 2014
While on storm chasing expeditions in the Tornado Alley in USA I have encountered many photogenic supercell storms. This photograph was taken while we were approaching the storm near Julesburg, Colorado on My 28th, 2013. The storm was tornado warned for more than one hour, but stayed an LP storm through all its cycles and never produced a tornado, just occasional brief funnels, large hail and some rain.
Mea Shearim, ultra Orthodox district of Jerusalem. Newly married, Aaron and Rivkeh after the wedding ceremony are to stay together for the very first time, alone. Their marriage was arranged by families. 18 years old candidates confirmed the choice in result of the one meeting only. Since then until the wedding day they were prohibited to meet or even talk.
Green Lake (Grüner See) is located Tragöss Austria. In spring snowmelt raises the lake level about 10 meters. This phenomenon, which lasts only a few weeks covering the hiking trails, meadows, trees. The result is magical to watch diving landscapes.
This photo was captured at noon, 25.12.2013, from the castle which is located on the edge of the small town and is the perfect viewpoint for the panorama of the almost intact historical town. The fog and mist suffused and gave the town a sense of mystery.
Location: Český Krumlov, South Bohemian, Czech Republic
This photo, taken at the 'end of the world' swing in Banos, Ecuador, captures a man on the swing overlooking an erupting Mt. Tungurahua. The eruption took place on February 1st, 2014. Minutes after the photo was taken, we had to evacuate the area because of an incoming ash cloud.
While exploring Burough Market in London, I was delighted to come across four lovely young women dressed in vintage white dresses, eating ice cream as the local shopkeeper looked on. Are they brides? Or bridesmaids. I don't know, but they are obviously enjoying a very special day.
This photo, of Moussa Macher, our Touareg guide, was taken at the summit of Tin-Merzouga, the largest dune (or erg) in the Tadrat region of the Sahara desert in southern Algeria. Moussa rested while waiting for us to finish our 45 minute struggle to the top. It only took 10 minutes of rolling, running and jumping to get to get back down.
The Tadrat is part of the Tassili N'Ajjer National Park World Heritage Area, famous for its red sand, and engravings and rock paintings of cattle, elephants, giraffes and rhinos that lived there when the climate was milder.
Location: Summit of Tin-Merzouga, Tadrat, Tassili N'Ajjer National Park, Algeria
Taken during "The Mayana Soora Thiruvizha" festival takes place every March in the small village of Kaveripattinam, the day after Mahashivarathiri (The great night of Shiva). The festival is devoted to Angalamman, a fierce guardian deity worshipped widely in Southern India.
On arrival at Jonathan's Lodge our horses took to celebrating liberation from their heavy burdens. With the backdrop of "The Devil's Knuckles" and the afternoons glow how could i not take advantage of these magnificent creatures rejoicing in the afternoons glow . This was the end of the first of a three day horse back ride through Bushman's Nek, up the Drakensberg escarpment and into Lesothos' Sehlabathebe National Park.
Location: Jonathans Lodge, Qachas Nek, Sehlabathebe National Park, Lesotho