Graffiti is painted on the bathroom walls at a restaurant in the Williamsburg area of Brooklyn borough in New York, United States, October 1, 2015. Some 2.4 billion people around the world don't have access to decent sanitation and more than a billion are forced to defecate in the open, risking disease and other dangers, according to the United Nations. To mark World Toilet Day on November 19, Reuters photographers captured pictures of toilets in cities, towns and villages around the globe. (Photo by Shannon Stapleton/Reuters)

Underwater photographer Alexander Semenovs has snapped some of the most stunning, fragile life forms anywhere on planet Earth. Shot in deep, dark conditions, the images continue to provide an insight into what lies beneath, with glowing creatures appearing a lot like aliens in the pitch-black water. Semenovs has shot the likes of bioluminescent jellyfish, aggressive-looking worms and many species that leave a lot to the imagination. The 30-year-old from Moscow does the majority of his work in the White Sea, near the Arctic Circle. Here: A Comb jelly – Beroe cucumis. (Photo by Alexander Semenovs/Caters News)

These stunning images got such a great reception they have been unveiled as the best wedding photos of 2016. The impressive photos include couples from around the world on their big day. One shot shows a bride and groom horse riding, while another captures the newlyweds jetting off for their honeymoon. The International Society of Professional Wedding Photographers (ISPWP) picked from over 23,000 submissions for the stunning collection. Here: Wedding in the UK. (Photo by Dan Bold/Caters News)

These pictures show a rather annoying crow irritating an eagle. The crow tirelessly circles the bird of prey and repeatedly lands on his head – much to the crows displeasure. The encounter was spotted by Greaves Henriksen in Tamilnadu, India. The 52-year-old amateur photographer believes the eagle was sitting close to a nest, which the crow was trying to defend. Here: A crow lands on the eagles head much to the eagles displeasure. (Photo by Greaves B. Henriksen/Caters News Agency)

A British photographer has captured the hilarious expressions pulled by dogs as they go for a run. From popping eyes to lolling tongues, Nick Ridley from Aylesbury in Buckinghamshire has managed to perfectly pause the pooches in time as they pull a host of funny faces in the great outdoors. The 56-year-old uses a fast shutter speed and lies on the ground snapping away as the dogs run towards him in order to get the perfect shot. Here: A Dogue de Bordeaux. (Photo by Nick Ridley Photography/Caters News Agency)

This happy couple started married life on top of the world, having exchanged their vows on mount Everest. Dressed in a full suit and wedding dress, James Sissom and Ashley Schmieder spent days scaling the mountain range in order to be photographed in front of such a breathtaking backdrop. Here: James Sissom and Ashley Schmieder exchange vows on Everest. (Photo by Charleton Churchill/Caters News Agency)

An innovative artist has camouflaged nude bodies by painting them into the worlds most expensive artworks. New York body artist, Trina Merry picked the 20 top dearest paintings, then photographed naked models disguised as part of the piece. Here: Titled 8,100,000 after the price paid for Bal du moulin de la Galette. (Photo by Trina Merry/Caters News)

Beautiful seascapes capture the “raw power” of waves rising and crashing in the Indian Ocean. The stunning photos were taken off the coast of Durban in South Africa, and show formations from above and below the surface. Surfer and photographer Marck Botha took the images between April and July, and has always had a passion for the ocean. Here: Marck captured this moment in time from the shore on July, 30, 2015, in Durban, South Africa. (Photo by Marck Botha/Barcroft Media)