These dramatic photos come from California, where firefighters are currently battling an out-of-control wildfire in the Sierra Nevada mountains. By Wednesday, it had spread through 111 square miles and was threatening more than 2,000 homes.

Photographs: Noah Berger/Reuters

In preparation for the 150th anniversary of the first ascent of the Matterhorn, mountain guides transformed the spectacular summit into a shining stone icon using Mammut torches. (Robert Boesch/AP Images)

Today’s best photography »

Ava, Ruger and Ginger, photographed by Seth Casteel for Underwater Puppies, the follow up to his best-seller Underwater Dogs. 

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Eyewitness: A green-eyed damselfly appears to pose for Remus Tiplea’s camera as it perches on flower petals in his back garden. (Remus Tiplea/Barcroft Media)

In Greek mythology, Sisyphus was condemned for eternity to push a boulder up a hill only for it to roll down again.

In San Francisco, artist Lee Materazzi decided to create her own mini version of the myth in her garage, creating installations and dismantling them as soon as they were done. 

“A lot of the everyday things people do are like pushing a boulder up a hill to then just have it topple back down – laundry for one.” More photos »

"One male friend said that I couldn’t do it because my husband’s business partners would see, and one asked how my sons would feel when they grow up [they are seven and nine]. But both arguments were about the men in my life, and I thought they weren’t reason enough to stop me as an artist, a woman and a feminist."

United front: breasts without the airbrush »

Photos: Laura Dodsworth

Obama broke off from discussing world affairs at the Nato summit in Newport, Wales, to visit Stonehenge. (Charles Dharapak/AP)

Humans of New York photographer, Brandon Stanton, is on a world tour with the United Nations, raising awareness of its goals for tackling the world’s largest problems.

In an interview, he said: “everywhere I go, people want the same things – security, education, family. It’s just that so many people have no avenues through which to obtain these things”.

Photo: humansofnewyork/Brandon Stanton

Iceland’s Bardarbunga volcano began erupting in spectacular form this week. But terrifying as it may first appear, that hasn’t stopped one UK tour operator offering visitors the chance to fly over the action.

Photo: RTH Sigurdsson/Discover the World

Sydney’s Doll Hospital has worked on millions of dolls, teddy bears and other toys. Behind a toy shop on a busy street in south Sydney, ‘doll surgeons’ transplant fingers, toes and heads and repair broken eye sockets. (Photo: Jason Reed/Reuters)

Don’t have nightmares »