Cole Yeoman steps over a large crack along River Road, Avonside on February 25, 2011 in Christchurch, New Zealand. The death toll has risen to 113 and the hope for finding survivors is fading as rescuers search through debris for over 200 still missing following a 6.3 magnitude earthquake that struck Christchurch on Tuesday. The quake, which was an aftershock of a 7.1 magnitude quake that struck the South Island city on September 4, 2010, has seen damage and fatalities far exceeding those of the original. (Photo by Martin Hunter/Getty Images). CHRISTCHURCH, NEW ZEALAND – FEBRUARY 25

Farmers use tractors and burn tires, hay and manure as they block the highway between Morlaix and Brest during a demonstration against the market prices of their product, on July 22, 2015 in Morlaix, western of France. French farmers protesting over falling food prices threatened to step up blockades of cities, roads and tourist sites, as the government prepared to unveil emergency aid for them. Farmers have dumped manure in cities, blocked access roads and motorways and hindered tourists from reaching Mont St-Michel in northern France, one of France's most visited sites. (Photo by Fred Tanneau/AFP Photo)

A combination photo shows some of the colourful doors seen in Rabat's Medina and Kasbah of the Udayas, September 2014. UNESCO made Rabat a World Heritage Site two years ago and media and tour operators call it a “must-see destination”. But it seems the tourist hordes have yet to find out. While visitors are getting squeezed through the better-known sites of Marrakesh and Fez, the old part of Rabat - with its beautiful Medina and Kasbah of the Udayas - remains an almost unspoiled oasis of calm. Smaller and more compact, its labyrinths of streets, passages and dead ends are a treasure trove of shapes and colours, of moments begging to be caught by the photographer's lens. (Photo by Damir Sagolj/Reuters)

For most ironing is one of those boring chores we tend to put off doing – but for one teenager ironing has become something of an extreme sport. Kevin Krupitzer, 17, has turned the mundane into the insane by taking his ironing board to the most extraordinary of locations, from the edge of cliff to on board a canoe. The daring teenager travels around his hometown of Gilbert, Arizona in search of the weirdest places to iron. And he has even climbed to the top of a 120ft high rock, dubbed the Totem Pole in Queen Creek Canyon, AZ in pursuit of his bizarre hobby. (Photo by Kevin Krupitzer/Caters News)

These stunning light art pictures of skateboarding skeletons were created by Darren Pearson from Los Angeles. He works as a full time illustrator by day and by night he explores the varying landscapes of California in search of the perfect scene for his light-sculptures. Pearson makes complex light-effect photographs, none of which are photoshopped. He describes the work as location-based light art. Photo: A light skateboarder grinding a rail. (Photo by Darren Pearson/Caters News)

Throughout the course of the long war in Afghanistan, Coalition troops have relied on thousands of military working dogs to help keep them safe, and make their jobs easier. The dogs are trained to detect explosives, to find illegal drugs, to search for missing comrades, or target enemy combatants. Not only are they active on the front lines, but behind the lines they serve as therapy dogs, service dogs, and loyal companions. They also share the same risks as the ground troops, suffering injuries and sometimes death on the battlefields. Gathered here are images of these dogs and their handlers in Afghanistan and back home, from over the past several years, part of the ongoing series here on Afghanistan.

Number 10. BELL H-13 SIOUX was a two-bladed, single engine, light helicopter built by Bell Helicopter. Westland Aircraft manufactured the Sioux under license for the British military as the Sioux AH.1 and HT. In 1947, the United States Air Force ordered the improved Bell Model 47A. Most were designated YR-13 and three winterized versions were designated YR-13A. The United States Army first ordered Bell 47s in 1948 under the designation H-13. These would later receive the name Sioux. The Bell-built H-13 B is seen airborne in this April 29, 1951 photo. The helicopter is equipped with a 173 horsepower engine, cruises at 85 miles per hour, climbs 900 feet in a minute and has a service ceiling of 11,500 feet. (Photo by AP Photo)

It is simply staggering how complicated some items really are. We never think about it, but some items that we use every day consist of hundreds of parts meticulously put together and working perfectly. Todd McLellan is a photographer who based his newest book “Things Come Apart” on the complexity of various old and new tech. By carefully taking apart various items and arranging all of the parts in perfect order, Todd has allowed us not only to look inside various appliances, but also to appreciate the astounding complexity of these items. Just like the human mind, we are so used to seeing and talking with people that we forget just how complicated their minds really are. It would be great if we could “take apart” the human mind in order to gain some insight into the person’s thoughts and desires. However, very few people are capable of doing it, while the rest will remain blind to the obvious. (Photo by Todd McLellan)