Before he was a controversial film-maker, Larry Clark was a controversial photographer, recording his teenage life of drugs and addiction in Tulsa (1971) and Teenage Lust (1983). Photo: Untitled, 1963. (Photo by Larry Clark/Courtesy of the artist and Luhring Augustine, New York)

Photographer Tyler Shields had become comfortable, a feeling he found “terrible” as an artist. He wanted to do something challenging, something that pushed the human boundaries. So he spent a year documenting heights, fear, energy and falling – a series he calls “Suspense”. Photo: “Balloon”. (Photo by Tyler Shields)

Interior designer Zahra Afridi (R) kicks a punching bag during a kickboxing training session at her home in Islamabad February 10, 2014. Afridi runs her own interior design company. Her most recent project was a Classic Rock Coffee cafe in Islamabad. Though instability continues to plague Pakistan and many areas are dominated by social conservatism, some of the country's more affluent residents have worked to fashion a very different kind of lifestyle for themselves. Pictures of men and women taking part in all sorts of activities and professions – from being a pilates instructor, to a textile retail entrepreneur, to a member of a rock band – offer a different view of Pakistan to images of conflict that often make the news. (Photo by Zohra Bensemra/Reuters)

Τhe hovering car without wheels, also called the hovercar, is a constant fixture in science fiction films, video games and comic books, and a long-standing dream for car lovers and technology fans alike. This dream is also shared by French photographer Renaud Marion, who creates images depicting hovering cars in everyday urban settings. In his ongoing photographic project titled ‘‘Air Drive’’, Marion combines retro car designs with futuristic technology, a project driven by his childhood visions of how the world was going to look like in the future. (Photo by Renaud Marion)

In this handout image supplied by Qatar 2022 The Al-Rayyan stadium is pictured in this artists impression as Qatar 2022 World Cup bid unveils it's stadiums on September 16, 2010 in Doha, Qatar. It has been designed to include a “media facade” that includes a membrane that acts as a screen for projections; news, commercials, sports updates and current tournament information and matches. (Photo by Qatar 2022 via Getty Images)

These stunning pictures show a normally vicious tiger calmly swimming in a pool of algae, on Jule 9, 2014. The powerful cat takes a refreshing break by taking a dip in the bright green algae. But it looks like this big cat is scared of getting his head wet as he strains to keep it above the water. After splashing around for a bit the tiger gets out and tries to air-dry with specks of the vegetation dripping off his fur. The striking pictures were taken at Copenhagen zoo by snapper Soren Lundgren Neilson. (Photo by Soren Nielsen/Caters News)

Wearing traditional Belarus costumes girls jump over a bonfire as they celebrate the Ivan Kupala night, an ancient heathen holiday, held in the countryside near the town of Turov, some 260 km southwest of the capital Minsk, on July 6, 2014. People celebrate Kupala Night with bonfires that last throughout the night with some leaping over the flames as it is believed that the act of jumping over the bonfire cleanses people of illness and bad luck. (Photo by Viktor Drachev/AFP Photo)