The 2016 National Geographic Travel Photographer of the Year Contest is in its final week. Here is a selection of some of the striking images entered so far. David Nam Lip Lee captured this moment on an overcrowded train as devotees made their way home after the Bishwa Ijtema festival in Tongi, Bangladesh.
People enjoy the Blue Lagoon, outside of Reykjavik, Iceland, in a picture submitted by Slawek Kozdras.
Midnight Thirst is the title of Alison Langevad's entry of buffalo at a watering hole in South Africa.
Hindus in India celebrating the festival of Hoolee - known for its bonfires, dancing and the throwing of coloured paint - are the focus of Claudio Ceriali's vibrant image.
A bride waits in the snow in Shinjuku, Tokyo, in this shot submitted by Stephane Mangin.
The colourful buildings of Ho Chi Minh City as seen by King Fung Wong from a 12th-floor window.
An elephant holds on to another's tail as they walk the fields of The Crags Elephant Sanctuary, Plettenberg Bay, South Africa, in this entry from Kathleen Cameron.
"As I was walking through the streets of Havana, I came across this house that looked more like a museum than a regular home," says photographer Romaine W.
"In the breathtaking scenery of the Namibrand Park, right at the border of the Namib-Naukluft National Park, an enormous thunderstorm came in and the setting sun created a wonderful rainbow," says Stefan Forster of his submission.
Kajan Madrasmail 's entry shows a colourful evening market in Bangkok.
This gill shark was photographed by Tracey Jennings, in a kelp forest just off the shore of Simonstown, near Cape Town. The contest closes for entries on 27 May 2016.
